ES2379735T3 - Procedure for manufacturing dispensing devices without toilet basket - Google Patents

Abstract

A process for manufacturing a dosing device for a toilet without a basket useful for the supply of at least one solid treatment composition, preferably a cleaning composition and / or a sanitation composition to a sanitary appliance, wherein said Dosage for toilet without basket comprises a suspension support (10) having a hook end (20) adapted to be suspended from a part of a sanitary appliance, preferably the edge of a toilet bowl, and a pressed solid block (50) comprising titanium dioxide and at least one chemical agent adapted to be suspended inside the sanitary apparatus, said manufacturing process comprises the steps of: (a) mixing the titanium dioxide with at least one additional chemical composition in an extruder to form a mass; (b) extrude the dough to give a preform shape; (c) divide, at least partially, the extruded piece to give the branches of a `V 'during extrusion of the dough to form the preform; (d) insert a part of the hanger to form the preform; and (e) compressing the preform form into a die to provide the final form of the pressed solid block composition of the basketless toilet dosing device.

Description

Procedure for manufacturing dispensing devices without toilet basket

The present invention relates to improvements in the manufacture of dispensing devices. More particularly, the present invention relates to improved processes for the manufacture of a device that is used to deliver a treatment composition to a sanitary appliance, in particular to a toilet, treatment composition containing one or more chemical constituents, for example , coloring agents, cleaning agents, disinfectants, lime descaling agents in the form of a block. The treatment composition is formed upon entering, the water that is in contact with the device block, in contact with the one or more chemical constituents; The block provides for the long-term release of the one or more active agents during sequential contacts with the water that is in contact with the block of the toilet dosing device.

Since the appearance of sanitary appliances and, in particular, of modern toilets with cistern, there has been a continuing need in the art to provide effective ways to keep these appliances in a satisfactory condition between uses. The technique is full of devices whose use is intended "in the cup" (or ITB) or "in the cistern" (or ITC), in order to provide an effect of coloring and / or cleaning and / or aromatization and / or sanitation to such sanitary devices, in particular to toilet bowls.

A common approach that is known in the art is the provision of a device that is at least submerged inside the tank or a toilet tank, which can be placed or entirely inside the toilet such as by placing a toilet bowl at the bottom, so that the entire device is completely submerged in water when the tank is full, or at least partially submerged in the water present in a tank toilet, such as in a case where such a device is suspended from a part of the toilet tank, such as a lip or edge of the tank. They are referred to in general as ITC devices.

A further common approach that is known in the art is the provision of a device that is suspended from the edge of the toilet bowl and that is placed on or near the inner side wall of the toilet bowl. They are generally referred to as ITB devices. Such a device is designed to dose, normally, a treatment composition to the inside of a toilet, when a block or gel composition comes into contact with the wash discharge water or, alternatively, to dose a composition of Toilet bowl aromatization that is intended to counteract or mask bad odors. Typically, such devices include a hanger part that is used to suspend a basket part from the edge of the toilet bowl, such that the basket part is placed in the path of the flowing water, which is dosed with Each toilet flush discharge operation. The basket part normally comprises a plurality of holes or openings, which allow the wash discharge water both to enter and exit the basket part of the device. Normally, a solid block composition or a gel composition is present inside the basket. The solid block composition and / or the gel composition typically comprise one or more cleaning constituents, for example, one or more surfactants that provide a benefit of good cleaning and / or foaming. Often, the solid block composition and / or the gel composition comprise a fragrance constituent that is also intended to provide a certain degree of odor suppression. For most of such devices, the use of a basket is essential, as in the case of a gel composition, because the gels do not support themselves and would not be useful without the physical support structure provided by the gel. basket. With respect to solid block compositions, such compositions are notoriously prone to weaken and soften over time and it is known that most deplete or yield over their useful life, particularly when they approach the end of their useful life. of service. The basket then acts as a receptacle and support for said blocks, which would otherwise soften or disintegrate prematurely and fall into the toilet bowl and creep through the discharge water before its composition was substantially consumed.

Although the use of a basket is beneficial, the use of a basket is not without concomitant problems. The use of a basket requires increased material costs, and additional manufacturing steps. In addition, because these ITB devices are normally single-use type devices, once the block or gel composition is consumed or otherwise depleted, the consumer discards the entire ITB device, which is not cost effective and It contributes to the problems associated with proper waste disposal. With respect to the costs, in most of the conventional edge-suspended toilet devices, comprising a hanger part and a basket part, the volume of the material is normally used to form the basket. Because these baskets are normally manufactured from a synthetic polymer, this requires specific molding operations in order to form the toilet device suspended from the edge, and to fill the basket with the solid block composition and / or the gel composition before use and / or sale.

In the art, toilet devices suspended from the edge are known, which are toilet blocks of paradichlorobenzene that do not provide a cleaning benefit, but only provide a flavoring benefit. Such blocks are normally eroded by sublimation of paradichlorobenzene and / or by contact with the wash discharge water. These edge-suspended type devices are toilet blocks of

Paradichlorobenzene that is normally packaged as a solid block or tablet having, extending from one side, a loop of foldable wire. A part of the foldable wire is embedded within the paradichlorobenzene block. The consumer is required to give the wire the shape of a hanger suitable for the particular geometry of its toilet, such that the paradichlorobenzene block is placed with the inside of the toilet bowl.

EP-A-1,418,225 discloses a method for manufacturing a dosing device for a basketless toilet, comprising a hanger and a pressed solid block comprising titanium dioxide, which includes mixing the material block, extruding it. and compress it to give a block.

Apart from the foregoing, although removing a basket from a toilet device suspended from the conventional edge would be beneficial, it is not believed that these are known. This is due to the fact that it is known that solid block compositions containing surfactants rapidly soften and this in turn eliminates any reasonable prospect of a service life when used in conjunction with a toilet that lacks the support that It is provided by the basket.

Therefore, although certain dosing devices known in the art provide beneficial odor treatment effects, there is nevertheless a real and continuing need in the art to provide even more improved devices that can provide to a sanitary appliance a useful treatment benefit, preferably a useful cleaning benefit.

The present invention, in its various aspects, provides a process for the manufacture of a toilet dosing device useful for the delivery of at least one treatment composition, preferably a cleaning composition and / or a sanitation composition to a sanitary appliance , for example, a toilet bowl. The device can be used as either an ITC type device, or an ITB type device, for a sanitary device such as a urinal, toilet tank or toilet bowl. In certain preferred embodiments, the device according to the invention is used as an ITB type device. In certain alternative preferred embodiments, the device according to the invention is used as an ITC type device.

According to a first aspect of the invention, a process is provided for the manufacture of a dosing device for a basketless toilet as defined in the independent claim.

Defined in a broad sense, the present invention relates to a method of manufacturing a basketless toilet device comprising a hanger and a pressed solid block comprising one or more chemical constituents, but this solid block necessarily includes titanium dioxide, for its use with a sanitary appliance, as well as procedures for the use of the toilet device without a basket in the treatment of sanitary appliances, in particular toilets.

It is possible to manufacture basketless toilet devices comprising a hanger and a pressed solid block composition hanging from the hanger, solid block compositions comprising one or more chemical constituents, preferably at least one surfactant composition, basketless toilet devices which are useful in the provision of a treatment composition to a sanitary apparatus along repeated washings of water discharge and / or repeated immersions in water, in which the compressed blocks do not fall far from

or break away from the hanger for a reasonable period of time.

Basketless toilet devices comprising a hanger and a pressed solid block composition that hangs from the hanger, solid block compositions that include one or more chemical constituents, preferably at least one surfactant composition, are formed by a process that includes : (a) forming a dough comprising titanium dioxide with at least one or more chemical constituents; (b) compress an amount of the dough to enclose a part of the hanger. The dough comprising the at least one or more chemical constituents is combined and extruded to give a preform shape, then a part of the hanger is inserted into the preform form or between a plurality of preform shapes, and subsequently The preform form (s) are pressed into a die to provide the final form of the pressed solid block composition of the basketless toilet device. The pressed solid blocks are retained in a part of the hanger without the need for a basket that encloses them, as well as without the need for any separate adhesive composition or material to be placed between the pressed solid block and the part of the hanger with which the Pressed solid block comes into contact.

The surface appearance of the pressed solid block composition can be significantly improved in a case where an amount of titanium dioxide is included in the pressed solid block composition. Titanium dioxide is necessarily present in the compositions of the invention and, moreover, is preferably included in amounts that are found to be effective in improving the visible surface appearance that follows aging or use of the block in a sanitary appliance, a continuation especially of contact with and erosion by water, such as the wash discharge water of a sanitary appliance. It has been observed that the presence of titanium dioxide minimizes or eliminates the stained, veined, mottled or otherwise unattractive surface appearance of similar blocks that include sodium sulfate as a constituent, but which exclude the

titanium dioxide.

In its simplest form, the hanger is merely an article comprising, at one end, a hooked end that is adapted or configured to suspend the hanger from a part of a sanitary appliance. The hanger is preferably configured in order to allow its use either as an ITB device or as an ITC device. The hanger also includes a plate that is adapted to be embedded within the pressed solid block composition. Although the hook end may be formed in one piece and close to the plate, quite often the hanger includes an intermediate rod that connects the hook end to the plate. The hanger itself can be a single element of a unitary construction or, alternatively, can be formed from a plurality of elements that are adapted to join or connect to each other. When the hanger is formed from two or more such discrete elements, the individual elements can be fixed, coupled, or joined together to finally form the hanger. The basketless toilet device can be provided as a multi-purpose article, in which the consumer retains a part of said device in the sanitary apparatus, but replaces a part of said device periodically, as necessary. In such a configuration, usually a part of the hanger is retained and reused by a consumer, but after the consumption of the pressed solid block, a new pressed solid block is provided in the sanitary apparatus in which it can be fixed removable form to the retained part of the toilet device without basket. More conveniently, however, the hanger is an article in one piece.

With respect to the hook end, it should be understood that the hook end of the hanger can be of any configuration that is suitable to provide a hook-like support for suspending the plate and the pressed solid block inside a sanitary appliance. Ideally, the hook is configured such that it is adapted to be suspended over at least a part of the sanitary appliance edge. This may be an edge of a urinal, a toilet bowl, or a toilet tank or tank. The hook can be of any suitable dimension and, as understood as the configuration and geometry of the sanitary appliances vary, the hook can naturally be adapted to meet the particular geometric or dimensional configurations of the toilets. Alternatively and preferably, the hook end is flexible and can be configured to adapt to various configurations and geometries, such that it can be used with different sanitary appliances. Normally, however, the hook end can be configured to give a "U" shaped part of the hanger, such that it can be used to suspend the hanger and the plate carrying the pressed solid block composition.

The hook can be provided in a rigid preformed configuration that is non-flexible or only moderately flexible, in order to accommodate the dimensions of the hook for a particular sanitary apparatus, for example, when the hook is intended as a rigid preformed configuration that goes to be used to suspend the toilet device without a basket in an ITC application, the hook can be a discrete element that is sized to have a cross section that is adapted to accommodate a portion of the upper edge or edge of a toilet tank or toilet cistern. A hook of this type can merely suspend the device on the edge, or the hook can be configured such that, when applied to the part of the edge or upper edge of a toilet, it functions as a mechanical jaw, so that This is generally retained at its installation point and resists movement or accidental placement errors. Additionally or alternatively, such a hook can also include a connector element that can take any physical form or shape and that is configured to cooperatively connect with the remaining element or elements of the basketless toilet device, such that said remaining element or elements may be removably attached to such a hook. In this way, the hook can be retained despite the fact that the remaining elements, namely the plate carrying the compressed block and / or the rod, can be replaced a number of times, once the compressed block is depleted. Any suitable mechanical or chemical fastening means can be used to provide such a function. By way of non-limiting example, any of a number of cooperative mechanical elements, such as jaws, hook and loop fasteners, pins, springs, elastic bands, ties and eyelets, as well as chemical means, may be used, which includes adhesives such as low or medium strength adhesives can be used as the fastening means. Other fastening means may also be used, which are not elucidated herein but are known in the art. In a preferred embodiment, the hook includes a part that includes a mortise-shaped element, which cooperates with the rod or plate, which is configured as a cooperative pin that can be removably inserted into the mortise-shaped element. In another preferred embodiment, the hook includes a pin or hook, and the rod or plate includes a cooperative loop or ring from which the rod and / or the plate carrying the compressed block can be suspended. The use of such embodiments in two parts of the basketless toilet block of the invention is preferred because they provide a great deal of flexibility and also allows reuse of at least one element of the basketless toilet device multiple times, without require replacing the toilet device without a full basket when a compressed toilet block is used up. Therefore, in certain embodiments, certain items of the basketless toilet device can be reused, while others are intended to be single use items.

Conveniently, however, the hooked end is provided as one or more articulated elements that can flex or bend from a first or "folded" configuration to a second or "open hook" configuration. It is to be understood that, in accordance with the preferred embodiments, in order to minimize the volume of the hanger and, in particular, the hooked end thereof, the hanger can be provided in a folded or folded configuration when placed in a package. After opening the package, the consumer is then expected to easily deploy, extend or stretch a part of the hanger, in order to form the hooked end. An additional important advantage is that the degree of flexibility that is provided to the hanger in order to provide such a folding and folding hook end also introduces a degree of tension when the hook end is configured to be hung on a sanitary appliance. and, in particular, the edge of a urinal, a toilet tank or cistern, or the edge of a toilet bowl. In such a configuration, the tension really helps in the grip of the hook on the part of the sanitary apparatus on which the consumer originally places it. Such tension reduces the probability of translation or lateral movement with respect to its initial placement by a consumer, unless the consumer wishes. Therefore, a specific placement of the toilet device without a basket is foreseen, and a reasonable expectation that it will be retained at, or near, the position in which it was originally installed by a consumer in a relative manner on a sanitary appliance . Additionally, the tension provided also provides for a degree of elasticity and also aids in the positioning of the pressed solid block in, or near, a specific part of the inner sloping wall of a sanitary appliance, for example, a toilet bowl . This may be beneficial, in particular, to the fact that the wash discharge water from the toilet bowl normally comes out from under the edge. Using the traction property of the hanger, the continuous positioning of the pressed solid block within the path of the wash discharge water flowing in most circumstances is guaranteed.

As noted above, in certain preferred embodiments and in fact, in accordance with most preferred embodiments, there is a rod for connecting the plate with the hook end of the hanger. The rod itself can be of any dimension or length, however, desirably the rod is of sufficient length to ensure that the compressed block will be at least partially submerged and, preferably, fully submerged, in the present water. in the toilet or tank tank between discharge washes. When the stem is used in an ITB type device, advantageously once the hooked end is suspended on a sanitary appliance, in particular the edge of a toilet bowl, the rod extends a sufficient length towards the plate in such a way that, finally, the positioning of the hook and the length of the stem such that the pressed solid block that covers the plate is placed in the path of the wash discharge water. Again, the dimensions and, in particular, the length of the rod, can be varied, in order to meet the specific requirements of a specific configuration of a sanitary appliance, in particular in the case of a toilet bowl, the distance from the top of the edge down to the inside of the toilet bowl or, in the case of a tank or tank, the distance from the top of the edge of the tank or tank down, thereby that the plate intersects or is below the water line of the water present in the tank or cistern between discharge washes. For example, when used as an ITB device, in toilets that are normally in use in North America, the interior sloping walls of the toilet bowl are normally of a smaller and more circular radius, thereby providing a "less deep" distance between the top of the edge of the toilet bowl, and the drain or water outlet at the bottom of the toilet bowl. In such a circumstance, a shorter length rod is normally suitable, in order to ensure that the pressed solid block is placed in the path of the wash discharge water. In European toilets, normally, the configuration of the toilet bowl and its sloping walls are usually in the form of a more frustoconical configuration, thereby providing a "deeper" toilet bowl as measured from the edge to the level above the water in the sump. In such a configuration, a rod length greater than that which would be required for a North American toilet is then usually preferred. Of course, different configurations of other toilet bowls are also contemplated.

The hanger also requires a plate that is adapted to be embedded and / or coated within the pressed solid block composition. The plate itself is located at the distal end with respect to the hook end of the hanger and is usually formed in one piece with the stem or, in the case where a stem is not provided, with the end in hanger hook. The plate itself can be essentially of any useful configuration, but desirably, the plate is sized so that it is completely enclosed by the pressed solid block composition. Conveniently, the plate has a geometry that is symmetrical about the longitudinal centerline or axis of the rod and / or hook and hangs directly from the rod in the case where it is present, or the end of the hooked end of the hanger Conveniently, the plate is of a generally flat, flat configuration, and has a uniform thickness along its surface. However, it is also contemplated that the plate may include regions of decreasing thickness, that is, such as sections or margins of decreasing cross-section at or near the boundaries of the plate.

The plate itself does not necessarily need to be limited to a generally flat and generally two-dimensional configuration, but may include elements or sections extending outwardly from the surfaces above and / or below the plate, as in shape of one or more pegs, studs, pins,

fins, rods, loops or the like that could be useful in providing additional physical support between the plate and the pressed solid block composition that is coated. Alternatively, the plate may include one or more perforations that pass therethrough, whereby, after compression, adjacent parts of the solid block composition meet and pass through one or more perforations that may be provided within of the plate.

The plate itself can be of any configuration and, when it is in a flat shape, it can be square, rectangular, triangular, polygonal, ellipsiode, circular, flattened, or otherwise of any configuration that can be embedded inside of the pressed solid block. Alternatively, the plate may be one or more elements such as rods or tubes, which hang from and extend outwardly from the stem. Although the thickness of the plate can vary, preferably it is between 0.05 and 3 mm thick, preferably between 0.1 and 2 mm thick and, more preferably, between 0.25 and 1, 5 mm thick The thickness of the plate may vary along its surface and, in certain embodiments, the thickness of the plate decreases along its dimensions, the thickest part of the plate being close to its geometric center, and the parts being thinner of the plate one or more of the margins or peripheral sections of the plate. This can be used to form a plate of dimensions that decrease in cross section. However, preferably the plate is of a generally uniform thickness, with at least 90%, preferably at least 95% of its surface being a constant thickness with a variance of no more than +/– 5%.

Alternatively, the plate may be of a configuration that is not a flat configuration, for example, the plate may be one or more elements such as rods or tubes, which hang from and extend outwardly from the stem.

The plate is a generally flat plate, which has sloping top edges that are angled down and that form an obtuse angle with the center line (or center axis) of the hanger rod or hook, as measured from of the points from which the edges of the plate intersect the rod or hooked end. The sloping slopes can be linear or straight edges, or arc. The inventors of the present invention have discovered that the sloping slopes are advantageous when resisting water accumulation, and allow water runoff during the service life of the basketless toilet devices, when solid blocks Presses may have eroded enough to expose part of the plate from inside these blocks.

The best configuration for the plate is, in fact, a generally flat plate that has a generally uniform thickness along its surface. The dimensions of the plate must be such that, when considering the cross-sectional area of the plate with that of the laminar layer in cross-section of the block inside which it is placed, the percentage coverage of the area of plate with respect to the area of solid pressed sheet block must be no more than about 90%, more preferably the ratio is between about 10% and 90%, more preferably between about 20% and 80 % of the surface area of the plane or sheet layer of the pressed solid block composition within which the plate is located.

Although many plate configurations are possible, the longest service life of the basketless toilet devices was observed with generally flat plates that were substantially inlaid and coated inside the pressed solid block composition . Pressed solid blocks do not require the use of an adhesive material or substance between the plate and the pressed solid block, in order to retain the pressed solid block on the faces of the plate. Although it is not desired to be limited by the following, it was theorized that, when used as an ITB type device, during repeated washings of discharge of water that comes into contact with the upper surface of the pressed solid block, namely, the region from which the rod or hook end extends, minimal cracking or exfoliation of the regions of the block that had joined together by compression of the solid block was observed. This reduction in exfoliation or otherwise observed that divides the block in this region, guaranteed the longer term retention of the solid block composition pressed on the plate, and thereby the improved duration of the service life of the basketless toilet device used in conjunction with the sanitary appliance. It was observed that, when perforations were present, which includes large diameter circles or other discontinuities passing through the plate, it was observed that the pressed solid blocks mounted on the plates often fail prematurely. Again, and although the inventor of the present invention does not wish to be limited by the following, it is believed that the formation of tiny channels in the region of the pressed solid block that had been laminated may have been formed during repeated discharge wash cycles , and these channels that pass to the inside of the block form cavities and / or otherwise soften the inside of the solid block pressed in the region of such discontinuities in the plate, thereby mechanically softening the block and weakening its retention on the plate. Similarly, it is also observed that, when the plate had a more three-dimensional shape, that is, it included elements such as studs or pins, which extend outwardly from one or more faces of the plate, again, premature failure of the pressed solid block compositions was observed. Again, it is believed that a similar phenomenon also occurred, namely, in the formation of microchannels in the region of the rolling of parts of the block were formed and provided for the flow of wash discharge water to the inside of the block. and towards the plate region and, in particular, towards the regions surrounding asparagus

or extended pins. Again, it was believed that this was responsible for the premature softening of the part

inside the pressed solid block, and its premature failure.

Therefore, in particularly preferred embodiments, the plate configuration lacks any perforations, as well as lacks any elements or projections extending outwardly from one or more faces of the plate.

In a preferred embodiment, the basketless toilet device comprises a hanger having a separation section and a pressed solid block comprising one or more chemical constituents for use with a sanitary appliance, in particular a toilet. In accordance with the present embodiment, the hanger is an article comprising at one end, a hook end that is adapted or configured to suspend the hanger from a part of a sanitary apparatus as described above. The hanger is preferably configured in order to allow its use either as an ITB device or as an ITC device. The hanger also includes a plate, as also described above, which is adapted to be embedded within the pressed solid block composition, and a separation section or separation element that is in between the hooked end and the plate of the hanger Although the hooked end may be formed in one piece and be close to the plate, quite often the hanger includes an intermediate rod that connects the hooked end with the plate. Conveniently, the rod includes a section in a single piece or a part of the rod is formed to provide a separation section, or alternatively an element separate from the rod but which can be fixed thereto can be provided as a separation element. The separation element may conveniently be a section composed of the rod or hanger, such that the separation element is a single-piece section of the hook or rod. Alternatively, the separation element can be a discrete element or a discrete part that can be fixed to a part of the hanger, preferably to a part of the rod. The hanger separation element can be placed or placed anywhere between the hooked end and the plate, although it is positioned or advantageously positioned close to the plate, preferably with respect to the total length of the hanger as measured from the end of the hooked end, to the end or bottom of the plate, the separation element is within the lower half of this length and close to the plate. Preferably, the separation element is within 40% lower of the distance, more preferably it is within 33% lower of this distance. In particularly preferred embodiments, the separation element is in a position adjacent to the pressed solid block enclosing or covering the plate.

Desirably, when present, the separation element is sized appropriately so that it is adapted to extend from the rod or other part of the hanger in a direction behind the stem, that is, in the direction that it is coincident with the direction of the hooked end in relation to the rod. Therefore, when the basketless toilet device is mounted on the edge of a toilet bowl or on the edge of a toilet tank or toilet tank, the separation element generally extends in the same direction as The hooked end. Desirably, this direction is also generally perpendicular, namely 90 °, +/– 15 ° in relation to the plane defined by the plate. The separation element has a height dimension in which it forms a peak point that is the maximum distance from which it extends from the stem. Desirably, the height of the separation element is such that, when the basketless toilet device is initially installed in a sanitary appliance, the height of the separation element is sufficient to prevent a certain degree of physical contact between the pressed solid block. and a side wall or other part of a sanitary apparatus adjacent to said block, and / or when said block is partially eroded due to dissolution or other cause, the height of the separation element is large enough, such that the point The spout of the separation element comes into contact with the side wall or another part of the sanitary device and acts to lift the pressed solid block such that a gap is formed between said side wall or another part and the solid block. In certain embodiments, this occurs at least 50% of the total mass of the pressed solid block, preferably when less than 65% of the pressed solid block is eroded or dissolved. The formation of such a gap, in particular before the substantial erosion of the pressed solid block, is advantageous from several technical points of view. First, the formation of such a recess allows the composition of the pressed solid block not to be in contact with a wet side wall between the flushing wash cycles, when the basketless toilet device is used in a cup of toilet. This improves the service life of the pressed solid block. Secondly, when the pressed solid block includes a constituent of surfactant, and is separated from the side wall of a toilet bowl, during the discharge wash cycle it is observed that an improved foam formation takes place. Although it is not desired to be limited by the following, the inventors of the present invention believe that the gap between the surface of the pressed solid block suspended on the hanger and the adjacent side wall of the toilet bowl provides for a certain degree of cavitation and air entrainment in the space of this hole during the wash discharge operation. It is believed that this improves bubble formation and a more visible foam. Preferably, the gap between the gap between the surface of the pressed solid block suspended on the hanger and the adjacent side wall of the sanitary apparatus must be in the range of 0.2 to 3 mm at the closest point between the block surface and the adjacent side wall.

Although it is understood that various configurations and geometries of the compressed block compositions are possible, as well as various configurations and geometries of the hanger and the separation element, it is preferred however that the relative dimensions of these elements are such that, when The toilet device without basket is formed but has not been put into service, when said device is placed on a horizontal surface

flat, the separation element has a sufficient height, such that the peak point is sufficient to raise at least a part of the face behind the pressed solid block, preventing it from coming into contact with the horizontal surface. Also, preferably, after the basketless toilet device is put into service and installed in a sanitary appliance, preferably a toilet bowl, and at least 50% of the mass is eroded, desirably the height of the element of separation is sufficient for the peak point to come into contact with the surface of the sanitary apparatus adjacent to the pressed solid block and is sufficient to give rise to a gap of at least 0.2 mm, preferably a gap of between 0.2 and 3 mm between the closest point between the block surface and the adjacent side wall.

The hanger, either a single unit piece or assembled from a material composed of discrete parts or elements, can be formed from any of a variety of materials that can be used for the purpose described herein. Exemplary and preferred materials include metals, including wires or rods that can be bent and which are preferably coated with a flexible non-metallic material, such as a flexible polymer, a paint or a coating, as well as one or more polymers. Synthetics that are preferred. Preferably, the hanger may be composed of any of a number of thermosetting or thermoformable synthetic polymers, as widely used in injection or casting molding. Exemplary synthetic polymers such as polyamides, polyolefins (for example, polypropylene, polyethylene) as well as poly (alkylene terephthalates) (i.e., poly (ethylene terephthalate), poly (butylene terephthalate)), polystyrenes, polysulfones, polycarbonates as well as copolymers that are formed from monomers of one or more of the foregoing, several non-limiting examples of useful synthetic polymers being. Preferably, the building material is, at least to some extent, flexible. With regard to the hanger construction material, the only criteria are that the selected materials used to make the hanger are not adversely affected by the chemical constituents of the pressed solid block composition with which part of the hanger, namely, the plate and possibly part of the stem, come into contact.

Basketless toilet devices also necessarily comprise a pressed solid block comprising at least one or more chemical constituents, such that when the block is submerged, rinsed or washed with water, said chemical constituents are diluted or they dissolve in said water, and it forms a treatment composition that is useful when treating a sanitary apparatus and, in particular, a toilet tank

or cistern or a toilet bowl.

As chemical constituents, the pressed solid block may include any cleaning agents or cleaning constituents of the known art known to those skilled in the relevant art, and without limitation include one or more detersive surfactants surfactants selected from anionic, cationic, non- ionic as well as amphoteric or zwitterionic. Certain detersive surfactants may also provide a dual role in the provision of detergency as well as a disinfectant effect, namely, certain cationic surfactants, which are described hereinbelow as a disinfectant. These one or more cleaning agents or cleaning constituents can be used whether or not other constituents are present in the pressed solid blocks.

The solid block composition desirably comprises a surfactant constituent that may be one or more detersive surfactants. Exemplary useful surfactants include anionic, nonionic, cationic, amphoteric and zwitterionic surfactants, in particular those whose melting points are high enough, above about 43 ° C (110 ° F), preferably above 52 ºC (125 ºF), to allow processing according to techniques known in the field. However, small amounts of low melting surfactants, and even liquid surfactants, can be used in the provision of the surfactant constituent.

Exemplary anionic surfactants that can be used in the pressed solid block composition can be broadly described as water soluble salts, in particular alkali metal salts, of organic sulfuric acid reaction products having in its molecular structure an alkyl or alkaryl radical containing from about 8 to about 22 carbon atoms and a radical selected from the group consisting of ester radicals of sulfonic acid and sulfuric acid. (The alkyl part of higher acyl radicals is included in the term "alkyl"). Important examples of anionic surfactants that can be employed in the practice of the present invention are sodium alkyl sulfates.

or potassium, especially those obtained by sulphation of the higher alcohols (C8-C18 carbon atoms) that are produced by reduction of tallow glycerides or coconut oil; sodium or potassium alkylbenzenesulfonates, in which the alkyl group contains from about 9 to about 15 carbon atoms, (the alkyl radical may be a linear or branched aliphatic chain); paraffin sulphonate surfactants having the general formula RSO3 M, wherein R is a primary or secondary alkyl group containing from about 8 to about 22 carbon atoms (preferably from 10 to 18 carbon atoms) and M is a alkali metal, for example, sodium, lithium or potassium; alkyl-glyceryl-ether-sodium sulphonates, especially those ethers of the higher alcohols derived from tallow and coconut oil; sodium coconut oil fatty acid monoglyceride sulfates and sulphonates; salts of sodium or potassium sulfuric acid esters of the reaction product of one mole of a higher fatty alcohol (for example, tallow or coconut oil alcohols) and about 1 to 10 moles of ethylene oxide; sodium or potassium salts of alkyl-phenol-ethylene oxide ether sulfates with from about 1 to about 10 units of ethylene oxide per molecule and in which

alkyl radicals contain from about 8 to about 12 carbon atoms; the reaction products of fatty acids esterified with isethionic acid and neutralized with sodium hydroxide in which, for example, fatty acids are derived from coconut oil; sodium or potassium salts of fatty acid amides of a methyl taurate in which fatty acids, for example, are derived from coconut oil and �-acetoxy – or �– acetamido-sodium or potassium alkanesulfonates in which The alkane has 8 to 22 carbon atoms.

A preferred class of anionic surfactants are linear alkylbenzenesulfonate surfactant in which the alkyl portion contains from 8 to 16 carbon atoms and, more preferably, from about 11 to 13 carbon atoms. In accordance with particularly preferred embodiments of the invention, solid block compositions necessarily include an anionic surfactant.

A more preferred class of anionic surfactants are alpha-olefin sulphonates, as well as salts thereof, for example, alkali metal salts. C8 to C22 alpha-olefin sulfonates are preferred, in particular C12 to C18 alpha-olefin sulfonates, and especially C14, and C16 as well as combinations of two or more thereof. In accordance with particularly preferred embodiments of the invention, solid block compositions necessarily include an anionic alpha-olefin sulfonate surfactant.

The detersive surfactant constituent of the solid block composition may include one or more nonionic surfactants. In practice, any hydrophobic compound having a carboxyl, hydroxyl, amido or amino group with a free hydrogen attached to nitrogen can be condensed with an alkylene oxide, especially an ethylene oxide, or with the polyhydration product thereof, a polyalkylene glycol , especially polyethylene glycol, to form a water-soluble or water-dispersible non-ionic surfactant compound. In addition, the length of the hydrophobic and hydrophilic elements of polyethenoxy can vary. Exemplary nonionic compounds include polyoxyethylene ethers of alkyl aromatic hydroxyl compounds, for example, alkylated polyoxyethylene phenols, polyoxyethylene ethers of long chain aliphatic alcohols, polyoxyethylene ethers of hydrophobic propylene oxide polymers , and the higher alkylamine oxides.

A class of useful non-ionic surfactants include alkyl alkylene polyoxide condensates. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to 12 carbon atoms in either a straight chain or branched chain configuration with an alkylene oxide, especially an ethylene oxide , the ethylene oxide being present in an amount equal to 5 to 25 moles of ethylene oxide per mole of alkyl phenol. The alkyl substituent in such compounds may be derived, for example, from diisobutylene, polymerized propylene and the like. Examples of compounds of this type include condensed nonyl-phenol, with approximately 9.5 moles of ethylene oxide per mole of nonyl-phenol; condensed dodecylphenol, with approximately 12 moles of ethylene oxide per mole of phenol; dinonyl-condensed phenol, with about 15 moles of ethylene oxide per mole of phenol and diisooctyl-condensed phenol, with about 15 moles of ethylene oxide per mole of phenol.

A further class of useful nonionic surfactants include the condensation products of aliphatic alcohols with from about 1 to about 60 moles of an alkylene oxide, especially an ethylene oxide. The alkyl chain of the aliphatic alcohol can be either linear or branched, primary or secondary, and generally contains from about 8 to about 22 carbon atoms. Examples of such ethoxylated alcohols include condensation products of condensed myristyl alcohol, with about 10 moles of ethylene oxide per mole of alcohol and condensation products of about 9 moles of ethylene oxide with coconut alcohol (a mixture of fatty alcohols with alkyl chains that vary, in terms of length, from about 10 to 14 carbon atoms). Other examples are C6-C11 straight chain alcohols that are ethoxylated with about 3 to about 6 moles of ethylene oxide. Its derivation is well known in the art. Examples include Alfonic® 810-4.5, which is described in the Sasol product literature as a C8-C10 linear chain alcohol with an average molecular weight of 356, an ethylene oxide content of approximately 4.85 moles (approximately 60% by weight), and an HLB of approximately 12; Alfonic® 810-2, which is described in the product literature as C8-C10 straight chain alcohols having an average molecular weight of 242, an ethylene oxide content of approximately 2.1 moles (approximately 40% in weight), and an HLB of about 12; and Alfonic® 610-3.5, which is described in the literature of products with an average molecular weight of 276, an ethylene oxide content of about 3.1 moles (about 50% by weight), and a HLB of 10. Other examples of ethoxylates are C10 ethoxylated oxo-alcohols available from BASF under the trade name Lutensol® ON. These are available in grades containing from about 3 to about 11 moles of ethylene oxide (available under the names Lutensol® ON 30; Lutensol® ON 50; Lutensol® ON 60; Lutensol® ON 65; Lutensol® ON 66; Lutensol ® ON 70; Lutensol® ON 80; and Lutensol® ON 110). Other examples of ethoxylated alcohols include the non-ionic surfactants of the Neodol® 91 series, available from Shell Chemical Company which are described as C9-C11 ethoxylated alcohols. Non-ionic surfactants of the Neodol® 91 series of interest include Neodol® 91–2.5, Neodol® 91–6, and Neodol® 91–

8. It has been described that Neodol® 91-2.5 has approximately 2.5 ethoxy groups per molecule; It has been described that Neodol 91-6 has approximately 6 ethoxy groups per molecule; and it has been described that Neodol 91–8 has approximately 8 ethoxy groups per molecule. Additional examples of ethoxylated alcohols include Rhodasurf® DA series non-ionic surfactants, available from Rhodia, which are described as

branched isodecyl ethoxylated alcohols. It has been described that Rhodasurf® DA-530 has 4 moles of ethoxylation and an HLB of 10.5; Rhodasurf® DA – 630 has been described as having 6 moles of ethoxylation with an HLB of 12.5; and Rhodasurf® DA – 639 is a 90% solution of DA – 630. Additional examples of ethoxylated alcohols include those of Tomah Products (Milton, WI) under the trade name Tomadol®, with the formula RO (CH2CH2O) nH, in which R is the primary linear alcohol and n is the total number of moles of oxide of ethylene. Tomah's ethoxylated alcohol series includes 91–2.5; 91–6; 91–8 - where R is linear C9 / C10 / C11 and n is 2.5, 6, or 8; 1–3; 1–5; 1–7; 1–73B; 1–9; where R is linear C11 and n is 3, 5, 7 or 9; 23–1; 23–3; 23–5; 23–6.5 - where R is linear C12 / C13 and n is 1, 3, 5, or 6.5; 25–3; 25–7; 25–9; 25–12 - where R is linear C12 / C13 / C14 / C15 and n is 3, 7, 9, or 12; and 45–7; 45–13 - where R is linear C14 / C15 and n is 7 or 13.

A further class of useful nonionic surfactants include primary and secondary linear and branched linear ethoxylated alcohols, such as those based on C6-C18 alcohols, which also include an average of 2 to 80 moles of ethoxylation per mole of alcohol. These examples include Genapol® UD (from Clariant, Muttenz, Switzerland) which is described under the trade names Genapol® UD 030, oxo-alcohol- (C11) - polyglycol ether with 3 EO; Genapol® UD 050, oxo-alcohol - (C11) - polyglycol ether with 5 EO; Genapol® UD 070, oxo-alcohol - (C11) - polyglycol ether with 7 EO; Genapol® UD 080, oxo-alcohol - (C11) - polyglycol ether with 8 EO; Genapol® UD 088, oxo-alcohol– (C11) - polyglycol ether with 8 EO; and Genapol® UD 110, oxo-alcohol - (C11) - polyglycol ether with 11 EO.

Exemplary nonionic surfactants useful by way of example include condensation products of secondary aliphatic alcohols containing from 8 to 18 carbon atoms in a linear or branched chain configuration fused to 5 to 30 moles of ethylene oxide. Examples of commercially available non-ionic detergents of the foregoing type are those commercially available today under the trade name Tergitol®, such as Tergitol 15-S-12, which is described as a C11-C15 secondary alkanol condensed with 9 units of ethylene oxide, or Tergitol 15 – S – 9, which is described as a C11 – C15 secondary alkanol condensed with 12 units of ethylene oxide per molecule.

A further class of useful nonionic surfactants include surfactants having a formula:

RO (CH2CH2O) nH

in which; R is a mixture of linear hydrocarbon chains with an even number of carbons that vary from C12H25 to C16H33 and n represents the number of ethoxy repeat units and is a number of about 1 to approximately 12.

The surfactants of the present formula are currently marketed under the trade name Genapol® (from Clariant), surfactants that include the "26-L" series of the general formula RO (CH2CH2O) nH, in which R is a mixture of linear hydrocarbon chains with an even number of carbons varying from C12H25 to C16H33 and n represents the number of repeat units and is a number from 1 to about 12, such as 26 – L – 1, 26 – L – 1, 6, 26 – L – 2, 26 – L – 3, 26 – L – 5, 26 – L – 45, 26 – L – 50, 26 – L – 60, 26 – L – 60N, 26 – L – 75, 26 – L – 80, 26 – L – 98N, and the 24 – L series, derived from synthetic sources and typically containing approximately 55% of C12 alcohols and 45% of C14 alcohols, such as 24 – L – 3, 24 – L – 45, 24 – L – 50, 24 – L – 60, 24 – L – 60N, 24 – L – 75, 24 – L – 92, and 24 – L – 98N, all sold under the trade name Genapol ®.

Additional useful non-ionic surfactants that can be used in the compositions of the invention include those currently marketed under the trade name Pluronics® (from BASF). The compounds are formed by condensing ethylene oxide with a hydrophobic base that is formed by the condensation of propylene oxide with propylene glycol. The molecular weight of the hydrophobic part of the molecule is of the order of 950 to 4,000 and, preferably, 200 to 2,500. The addition of polyoxyethylene radicals of the hydrophobic portion tends to increase the solubility of the molecule as a whole in order to make the water-soluble surfactant. The molecular weight of the block polymers ranges from 1,000 to 15,000 and the poly (ethylene oxide) content may comprise from 20% to 80% by weight. Preferably, these surfactants are in liquid form and, in particular, satisfactory surfactants such as those sold as Pluronics® L62 and Pluronics® L64 are available.

Additional non-ionic surfactants that may be included in the compositions of the invention include alkoxylated alkanolamides, preferably C8-C24-di (C2-C3-alkanol-amides) alkyl, as represented by the following formula:

R5 – CO – NH – R6 – OH

wherein R5 is a branched or straight chain C8-C24 alkyl radical, preferably a C10-C16 alkyl radical and more preferably a C12-C14 alkyl radical, and R6 is a C1-C4 alkyl radical, preferably an ethyl radical.

According to certain particularly preferred embodiments, the detersive surfactant constituent necessarily comprises a nonionic surfactant based on a linear primary ethoxylated alcohol in which in particular the alkyl part is a C8 to C16 alkyl group, but in particular a group C9 to C11 alkyl, and having an average of between about 6 and about 8 moles of ethoxylation.

A class of additional useful non-ionic surfactants include those in which the major part of the molecule is constituted by block C2-C4 polymer alkylene oxides, with alkylene oxide blocks containing C3 to C4 alkylene oxides. Such nonionic surfactants, although they are preferably constituted of an alkylene oxide chain starting group, can have as a starting core almost any group containing active hydrogen, which includes, without limitation, amides, phenols , and secondary alcohols.

A group of non-ionic surfactants containing the characteristic alkylene oxide blocks are those that can be represented in general by the formula (A):

HO– (EO) x (PO) and (EO) z – H (A)

in which EO represents ethylene oxide, PO represents propylene oxide, and is equal to at least 15, (EO) x + z is equal to 20 to 50% of the total weight of said compounds and, the total molecular weight is found preferably in the range of about 2,000 to 15,000.

Another group of non-ionic surfactants suitable for use in the new compositions may represented by the formula (B):

R– (EO, PO) a (EO, PO) b – H (B)

wherein R is an alkyl, aryl or aralkyl group, the alkoxy group contains 1 to 20 carbon atoms, the weight percentage of EO is in the range of 0 to 45% in one of the blocks a, b, and within the range of 60 to 100% in the other of blocks a, b, and the total number of moles of EO and PO combined is in the range of 6 to 125 moles, with 1 to 50 moles in the block rich in PO and 5 to 100 moles in the block rich in EO.

Additional non-ionic surfactants which, in general, encompasses formula B, include butoxy derivatives of propylene oxide / ethylene oxide block polymers having molecular weights within the range of about 2,000 to 5,000.

Even more useful nonionic surfactants containing polymeric butoxy (BO) groups can be represented by the formula (C) as follows:

RO– (BO) n (EO) x – H (C)

wherein R is an alkyl group containing 1 to 20 carbon atoms, n is approximately 15 and x is approximately 15.

Also useful as nonionic block copolymer surfactants which also include polymeric butoxy groups which can be represented by the following formula (D):

HO– (EO) x (BO) n (EO) and – H (D)

where n is approximately 15, x is approximately 15 and y is approximately 15.

Even more useful nonionic block copolymer surfactants include ethoxylated ethylene diamine propoxylated derivatives, which can be represented by the following formula:

wherein (EO) represents ethoxy, (PO) represents propoxy, the amount of (PO) x is such as to provide a molecular weight before ethoxylation of approximately 300 to 7,500, and the amount of (EO) and is such as to provide about 20% to 90% of the total weight of said compound. Additional useful nonionic surfactants include a nonionic amine oxide constituent. The

5 exemplary amine oxides include:

A) alkyl-di– (lower alkyl) -amine oxides in which the alkyl group has about 10 to 20 and, preferably, 12 to 16 carbon atoms, and can be straight or branched chain, saturated or unsaturated . The lower alkyl groups include between 1 and 7 carbon atoms. Examples include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide, and those in which the alkyl group is a

10 mixture of different amine oxide, dimethyl-cocoamine oxide, dimethyl- (hydrogenated tallow) -amine oxide, and myristyl / palmityl-dimethyl-amine oxide; B) alkyl-di- (lower hydroxyalkyl) -amine oxides in which the alkyl group has about 10-20 and, preferably, 12-16 carbon atoms, and can be straight or branched chain, saturated or unsaturated. Examples are bis (2-hydroxyethyl) -cocoamine oxide, bis (2-hydroxyethyl) -seboamine oxide;

15 and bis (2-hydroxyethyl) -estearylamine oxide; C) alkylamidopropyl-di (lower alkyl) -amine oxides in which the alkyl group has about 10-20 and, preferably, 12-16 carbon atoms, and can be straight or branched chain, saturated or unsaturated. Examples are cocoamidopropyl dimethyl amine oxide and tallowamidopropyl dimethyl amine oxide; Y

D) alkylmorpholine oxides in which the alkyl group has about 10 to 20 and, preferably, 12 to 16 carbon atoms, and can be straight or branched chain, saturated or unsaturated.

Preferably, the amine oxide constituent is an alkyl-di- (lower alkyl) -amine oxide as indicated above and which can be represented by the following structure:

in which each:

R1 is a C1-C4 straight chain alkyl group, preferably both R1 are methyl groups; and, R2 is a C8-C18 straight chain alkyl group, preferably it is a C10-C14 alkyl group, more preferably it is a C12 alkyl group.

Each of the alkyl groups can be linear or branched, although more preferably they are linear. More preferably, the amine oxide constituent is lauryl dimethyl amine oxide. Technical grade mixtures of two or more amine oxides may be used, in which amine oxides of variable chains of group R2 are present. Preferably, the amine oxides used in the present invention include R2 groups comprising at least 50% by weight, preferably at least 60% by weight of C12 alkyl groups and

At least 25% by weight of C14 alkyl groups, with no more than 15% by weight of C16, C18 or higher alkyl groups as the R2 group.

Even more useful non-ionic surfactants which can be used include certain alkanolamides, including monoethanolamides and diethanolamides, in particular fatty monoalkanolamides and fatty dialkanolamides.

A cationic surfactant can be incorporated as a germicide or as a detersive surfactant in the solid block composition, in particular in which a bleaching constituent lacks the solid block composition. Cationic surfactants are well known per se, and cationic surfactants useful by way of example may be one or more of those described, for example, in McCutcheon's Functional Materials, Vol. 2, 1998; Kirk – Othmer, Encyclopedia of Chemical Technology, 4th Ed., Vol. 23, pages 481-541 (1997).

These are also described in the respective product specifications and bibliography, available from the suppliers of these cationic surfactants.

Examples of preferred cationic surfactant compositions useful in the practice of the present invention are those that provide a germicidal effect to the concentrate compositions, and quaternary ammonium compounds and salts thereof, which may be characterized by the invention, are especially preferred. formula

50 general structural:

wherein at least one of R1, R2, R3 and R4 is an alkyl, aryl or alkylaryl substituent of 6 to 26 carbon atoms, and the entire cation part of the molecule has a molecular weight of at least 165. The alkyl substituents may be long chain alkyl, long chain alkoxyaryl, long chain alkylaryl, halogen substituted long chain alkylaryl, long chain alkylphenoxyalkyl, arylalkyl, etc. The remaining substituents on the nitrogen atoms other than the alkyl substituents mentioned above are hydrocarbons that usually contain no more than 12 carbon atoms. The substituents R1, R2, R3 and R4 may be straight chain or may be branched, although they are preferably straight chain, and may include one or more amide, ether or ester linkages. The X counterion can be any salt-forming anion that allows the water solubility of the quaternary ammonium complex.

Exemplary quaternary ammonium salts within the above description include alkyl ammonium halides such as cetyl trimethyl ammonium bromide, alkyl aryl ammonium halides such as octadecyl dimethyl benzyl ammonium bromide, N-alkyl pyridinium halides such as N-cetyl pyridinium bromide, and the like. Other suitable types of quaternary ammonium salts include those in which the molecule contains either amide or ether or ester linkages, such as octyl-phenoxy-ethoxy-ethyl-dimethyl-benzyl-ammonium chloride, N- (laurylcocoaminoformylmethyl) -pyridinium, and the like. Other very effective types of quaternary ammonium compounds that are useful as germicides include those in which the hydrophobic radical is characterized by a substituted aromatic nucleus as in the case of lauryloxyphenyltrimethyl ammonium chloride, cetylaminophenyltrimethyl ammonium methosulfate, dodecylphenyltrimethyl methosulfate, ammonium, dodecylbenzyltrimethyl ammonium chloride, chlorinated dodecylbenzyltrimethyl ammonium chloride, and the like.

Preferred quaternary ammonium compounds that act as germicides and have been found to be useful in the practice of the present invention include those having the structural formula:

wherein R2 and R3 are the same or different C8-C12 alkyl, or R2 is C12-16 alkyl, C8-18 alkylethoxy, C8-18 alkylphenoxyloxy and R3 is benzyl, and X is a halide, for example, chloride, bromide or iodide, or is a methosulfate anion. The alkyl groups listed in R2 and R3 may be straight or branched chain, although they are preferably substantially linear.

Particularly useful quaternary germicides include compositions that include a single quaternary compound, as well as mixtures of two or more different quaternary compounds. Such useful quaternary compounds are available under the trademarks BARDAC®, BARQUAT®, HYAMINE®, LONZABAC® and ONYXIDE®, which are described more fully in, for example, McCutcheon's Functional Materials (Vol. 2), North America Edition , 1998, as well as in the respective product literature of the suppliers identified below, for example, it is described that BARDAC® 205M is a liquid containing alkyl dimethyl benzyl ammonium chloride, octyl decyl chloride dimethyl ammonium; didecyl dimethyl ammonium chloride, and dioctyl dimethyl ammonium chloride (50% active) (also available as 80% active (BARDAC® 208M)); which is generally described in the McCutcheon’s document as a combination of alkyl dimethyl benzyl ammonium chloride and dialkyl dimethyl ammonium chloride); BARDAC® 2050 is described as a combination of octyl-decyl-dimethyl-ammonium chloride / didecyl-dimethyl-ammonium chloride, and dioctyl-dimethyl-ammonium chloride (50% active) (also available as 80% active (BARDAC® 2080)); BARDAC® 2250 is described as didecyl dimethyl ammonium chloride (50% active); BARDAC® LF (or BARDAC® LF – 80), which is described as being based on dioctyl-dimethyl-ammonium chloride; each of BARQUAT® MB – 50, MX – 50, OJ – 50 (each 50% liquid) and MB – 80 or MX – 80 (each 80% liquid) is described as an alkyl chloride– dimethyl benzyl ammonium; each of BARDAC® 4250 and BARQUAT® 4250Z (each 50% active) or BARQUAT® 4280 and BARQUAT 4280Z (each 80% active) is described as alkyl-dimethyl-benzyl-ammonium chloride / alkyl chloride– dimethyl-ethyl-benzyl-ammonium. Also, HYAMINE® 1622, which is described as diisobutyl-phenoxy-ethoxy-ethyl-dimethyl-benzyl-ammonium chloride (50% solution); HYAMINE® 3500 (50% active), which is described as alkyl dimethyl benzyl ammonium chloride (also available as 80% active (HYAMINE® 3500–80)); and HYAMINE® 2389, which is described as being based on methyldodecylbenzyl ammonium chloride and / or methyldodecyloxylene-bis-trimethyl-ammonium chloride. (BARDAC®, BARQUAT® and

HYAMINE® are currently commercially available from Lonza, Inc., Fairlawn, New Jersey). It is described that BTC® 50 NF (or BTC® 65 NF) is alkyl dimethyl benzyl ammonium chloride (50% active); BTC® 99 is described as didecyl dimethyl ammonium chloride (50% active); it is described that BTC® 776 is myrisalconium chloride (50% active); it is described that BTC® 818 is octyl-decyl-dimethyl-ammonium chloride, didecyl-dimethyl-ammonium chloride, and dioctyl-dimethyl-ammonium chloride (50% active) (also available as 80% active (BTC® 818–80%)); it is described that each of BTC® 824 and BTC® 835 is of alkyl dimethyl benzyl ammonium chloride (each 50% active); BTC® 885 is described as a combination of BTC® 835 and BTC® 818 (50% active) (also available as 80% active (BTC® 888)); BTC® 1010 is described as didecyl dimethyl ammonium chloride (50% active) (also available as 80% active (BTC® 1010-80)); BTC® 2125 (or BTC® 2125 M) is described as alkyl dimethyl benzyl ammonium chloride and alkyl dimethyl ethylbenzyl ammonium chloride (each 50% active) (also available as 80% active (BTC ® 212580 or BTC® 2125 M)); BTC® 2565 is described as alkyl dimethyl benzyl ammonium chloride (50% active) (also available as 80% active (BTC® 2568)); BTC® 8248 (or BTC® 8358) is described as alkyl dimethyl benzyl ammonium chloride (80% active) (also available as 90% active (BTC® 8249)); ONYXIDE® 3300 is described as n-alkyl-dimethyl-benzyl-ammonium saccharinate (95% active). (BTC® and ONYXIDE® are currently commercially available from Stepan Company, Northfield, Illinois). It is considered that polymeric quaternary ammonium salts based on these monomeric structures are also desirable for the present invention. An example is POLIQUAT®, which is described as a 2-butenyldimethyl-ammonium chloride polymer.

Preferred quaternary germicides used in the pressed solid block compositions are those supplied in solid or powdered form, because this greatly facilitates the manufacture of the pressed solid block compositions.

When present in a pressed solid block composition, it is preferred that the cationic surfactant (s) germicide (s) be present in amounts in order to dose at least about 200 parts per million (ppm) in the water that is discharged into the sanitary appliance, for example, the toilet bowl, or in the water that is retained in the sanitary appliance at the conclusion of the discharge wash cycle.

Additional detersive surfactants that may be included are amphoteric and zwitterionic surfactants that provide a detersive effect. Exemplary amphoteric surfactants include alkyl betaines, in particular those that can be represented by the following structural formula:

PN + (CH3) 2CH2COO-

wherein R is a linear or branched hydrocarbon chain that may include an aryl moiety, although it is preferably a linear hydrocarbon chain containing from about 6 to 30 carbon atoms. Additional exemplary useful amphoteric surfactants include amidoalkylbetaines, such as amidopropyl betaines, which can be represented by the following structural formula:

RCONHCH2CH2CH2N + (CH3) 2CH2COO-

wherein R is a linear or branched hydrocarbon chain that may include an aryl moiety, although it is preferably a linear hydrocarbon chain containing from about 6 to 30 carbon atoms.

As noted above, preferred detersive surfactants are those that exhibit melting points above about 43 ° C (110 ° F), preferably above 52 ° C (125 ° F), in order to allow convenient processing according to with techniques known in the field. However, small amounts of low melting surfactants, that is, those exhibiting melting points below about 43 ° C (110 ° F) and even liquid surfactants can be used in the provision of the surfactant constituent of the solid block composition.

Because the performance requirements of the pressed solid blocks may differ according to their use either as an ITB block or as an ITC block, the amounts of the constituents present in the block may also vary depending on the intended use of the final treatment block

When intended for use as an ITB block, the detersive surfactant constituent may be present in any effective amount and generally comprises up to about 90% by weight of the total weight of the solid block composition, and the treatment block resulting that is formed from it. Preferably, the detersive surfactant constituent comprises approximately 20 to 90% by weight, more preferably 35 to 80% by weight of the solid block composition and, when used as an ITB block, the constituent of Detersive surfactant most preferably comprises about 50 to 75% by weight of the solid block composition, and the resulting treatment block that is formed therefrom. When intended for use as an ITC block, the detersive surfactant constituent may be present in any effective amount and generally comprises up to about 60% by weight of the total weight of the solid block composition, and the treatment block resulting that is formed from it. Preferably, the detersive surfactant constituent comprises approximately 10 to 55% by weight, more preferably 20 to 50% by weight of the solid block composition, and the resulting treatment block that is formed from the same.

In particularly preferred embodiments, the pressed solid blocks necessarily comprise at least one surfactant, preferably at least one surfactant constituent, preferably an anionic surfactant.

The surface appearance of the pressed solid block composition is significantly improved in that an amount of titanium dioxide is included in the pressed solid block composition. Titanium dioxide is necessarily present in the pressed solid block compositions. The inventors of the present invention have observed that the inclusion of titanium dioxide beneficially improves the visual surface appearance of pressed solid block compositions, in particular following contact with and erosion by water, such as water from washing discharge of a sanitary appliance. The present effect has been observed with various pressed solid block compositions and, in particular, a pronounced removal or reduction of an unattractive spotted or mottled surface appearance due to the inclusion of titanium dioxide. The inclusion of titanium dioxide, in particular in the preferred amounts indicated herein, exhibits a reduction in the amount of white spots visible on the surface of the block as it erodes. It is believed that these white spots may be crystallized and / or agglomerated silica that can be distinguished visually and that provide a marbled surface appearance when viewed ordinarily. This is extremely undesirable from the point of view of a consumer and the most desirable is to avoid it. The inclusion of titanium dioxide in the composition block seems to minimize and / or inhibit the formation of such visible white spots to a significant degree. This benefit has been specifically observed with pressed solid blocks that also comprise a sulfate salt, especially sodium sulfate as an additional constituent. Distinctions between similar pressed solid block compositions, containing one titanium dioxide and sodium sulfate, containing the other sodium sulfate but excluding titanium dioxide, are strikingly evident, in particular after such blocks are eroded by discharge water. wash and then allow them to dry. An effect of this type is more evident as erosion amounts increase, due to increased discharge wash cycles. Therefore, the inclusion of titanium dioxide as an essential constituent of the pressed solid block composition provides such blocks, which have a much more attractive appearance for the naked eye of an observer, in particular following repeated use of the Pressed solid block composition, and dispensers without a basket for toilets, including such toilet block compositions comprising titanium dioxide.

Although the precise mechanism for such improvements in the surface of the compressed toilet blocks is unknown, and although it is not desired to be limited by the following hypothesis, the inventors of the present invention suspect that the presence of titanium dioxide in effective amounts it may interfere with the sulfate salt crystallization process, in particular sodium sulfate, as the pressed solid block composition is washed with, and eroded by, water. The reduction in the speed of, or the prevalence of, the crystallization of the sulfate salt by an interaction with titanium dioxide, can reduce the size of the crystals that form or the distribution of the shape of the crystals, or both , which limits its size to one that is imperceptible or only barely noticeable to the naked eye of an ordinary human observer. Of course, other mechanisms that are not yet clearly understood may be responsible for the minimization and / or inhibition of such visible white spots in the toilet block compositions.

Therefore, pressed solid block compositions necessarily comprise between about 0.001% by weight and about 10% by weight, preferably between about 0.01% by weight and about 5% by weight, still more preferably comprise between about 0.05% by weight and about 1.5% by weight, although more preferably they comprise between about 0.05% by weight and about 0.5% by weight of the toilet block compositions of which these form a part.

Additional exemplary chemical constituents may be one or more sanitizing agents or germicides that may be present without other constituents being present in the pressed solid blocks of the basketless toilet devices.

The sanitizing agent may be any sanitizing composition known to those skilled in the relevant art, and exemplary sanitizing compositions include, without limitation, materials containing alkyl halohydantoins, alkali metal haloisocyanurates, bleaching, essential oils, Germicidal compounds not based on quaternary ammonium as well as germicidal quaternary ammonium compounds.

By way of non-limiting example, an example bleaching constituent is provided. The bleaching constituent is relatively inert in the dry state but, when in contact with water, releases oxygen, hypohalite or a halogen, especially chlorine. Representative examples of typical oxygen release bleaching agents, suitable for incorporation into the solid block composition include alkali metal perborates, for example, sodium perborate, and alkali metal monopersulfates, for example, sodium monopersulfates, monopersulfate potassium, alkali metal monoperphosphates, for example, disodium monoperphosphate and dipotassium monoperphosphate, as well as other conventional bleaching agents capable of releasing hypohalite, for example, hypochlorite and / or hypobromite, include N-bromine- and N-chloro-cyanurates heterocyclics such as trichloroisocyanuric acid and tribromoisocyanuric acid, dibromocyanuric acid, dichlorocyanuric acid, N-monobromo-N-mono-chlorocyanuric acid and N-monobromo-N, N-dichlorocyanuric acid, as well

such as salts thereof with water solubilization cations such as potassium and sodium, for example, N-monobromo-N-monochlorocyanurate, potassium dichlorocyanurate, sodium dichlorocyanurate, as well as other N-bromine and N-chloro- imides, such as N-brominated and N-chlorinated succinimide, malonimide, phthalimide and naphthalimide. Also useful in the solid block composition as hypohalite bleaching agents are halohydantoins, which can be used include those that can be represented by the general structure:

wherein: X1 and X2 are independently hydrogen, chlorine or bromine; and, R1 and R2 are independently alkyl groups having 1 to 6 carbon atoms. Examples of halohydantoins include, for example, N, N'-dichloro-dimethyl-hydantoin, N-bromo-N-chloro-dimethyl-hydantoin, N, N'- dibromo-dimethyl-hydantoin, 1,4-dichloro, hydantoin 5,5-substituted dialkyl, in which each alkyl group independently has 1 to 6 carbon atoms, N-monohalogenated hydantoins such as chlorodimethylhydantoin (MCDMH) and N-bromo-dimethylhydantoin (MBDMH); dihalogenated hydantoins such as dichlorodimethylhydantoin (DCDMH), dibromodimethylhydantoin (DBDMH), and 1-bromo-3-chloro-5.5, -dimethylhydantoin (BCDMH); and halogenated methyl ethyl hydantoins such as chloromethyl ethyl hydantoin (MCMEH), dichloromethyl ethyl hydantoin (DCMEH), bromomethyl ethyl hydantoin (MBMEH), dibromomethyl ethyl hydantoin (DBMEH), and bromochloromethyl ethyl hydantoin (BCMEH), and mixtures thereof. Other suitable organic hypohalite release bleaching agents include halogenated melamines such as tribromomelamine and trichloromelamine. Suitable inorganic hypohalite bleaching agents include lithium and hypochlorites and calcium hypobromites. The various chlorine, bromine or hypohalite release agents may, if desired, be provided in the form of stable solid hydrates or complexes or, such as sodium p-toluene sulfobromamine trihydrate; Sodium Benzene Sulphochlorine Dihydrate; calcium hypobromite tetrahydrate; and calcium hypochlorite tetrahydrate. The brominated and chlorinated trisodium phosphates that are formed by the reaction of the corresponding sodium hypohalite solution with trisodium orthophosphate (and water, as necessary) similarly comprise inorganic bleaching agents useful for incorporation into the solid block composition. of the invention and the treatment blocks that are formed therefrom.

When present, preferably the bleaching constituent is a hypohalite release compound and more preferably it is a hypohalite release compound in the form of a solid hydrate or complex or thereof. In particular, chloroisocyanuric acids and alkali metal salts thereof, preferably potassium, and especially sodium salts thereof, are preferred. Examples of such compounds include trichloroisocyanuric acid, dichloroisocyanuric acid, sodium dichloroisocyanurate, potassium dichloroisocyanurate, and the trichloro-potassium dichloroisocyanurate complex. The most preferred chlorine bleach material is sodium dichloroisocyanurate; the dihydrate of this material being, in particular, preferred.

When present, the bleach constituent may be present in any effective amount and may comprise up to about 90% by weight, preferably at least about 0.1 to 60% by weight of the pressed solid block composition. More preferably, when present, the bleach constituent comprises about 0.5 to 50% by weight, more preferably at least 1 to 40% by weight of the pressed solid block composition.

Other germicidal effective agents useful as sanitizing agents include sodium dichloroisocyanurate (DCCNa) and sodium dibromoisocyanurate. Additional examples of non-quaternary ammonium-based sanitizing agents include pyrithione, dimethyldimethylol-hydantoin, sodium methyl chloroisothiazolinone / methylisothiazolinone sulphite, sodium bisulfite, imidazolidinyl urea, diazolidinyl urea, benzyl alcohol, 2-bromo-2 nitropropane – 1,3-diol, formalin (formaldehyde), iodopropenyl-butylcarbamate, chloroacetamide, methanamine, methyldibromonitrile glutanitrile, glutaraldehyde, 5-bromo-5-nitro – 1,3-dioxane, phenethyl alcohol, or– phenylphenol / sodium or– Phenylphenol, sodium hydroxymethylglycinate, bicyclic polymethoxyloxazolidine, dimethoxane, timersal-dichlorobenzyl alcohol, captane, chlorphenenesin, dichlorophen, chlorbutanol, glyceryl laurate, diphenyl halogenated ethers, phenolic compounds, mono- and polyalkyl and halophene derivatives; biphenolic compounds, benzoic esters (parabens), halogenated carbanilides, 3-tri fluoromethyl - 4,4-dichlorocarbanilide and 3,3,4-trichlorocarbanilide. More preferably, the non-cationic antimicrobial agent is a mono- and polyalkyl-halophenol and aromatic halophenol selected from the group of p-chlorophenol, methyl-p-chlorophenol, ethyl-p-chlorophenol, n-propyl-p-chlorophenol, n– butyl-p-chlorophenol, n-amyl-p-chlorophenol, sec-amyl-p-chlorophenol, n-hexyl-p-chlorophenol, cyclohexyl-p-chlorophenol, n-heptyl-p-chlorophenol, n-octyl-p- chlorophenol, o-chlorophenol, methyl-o-chlorophenol, ethyl-o-chlorophenol, n-propyl-o-chlorophenol, n-butyl-o-chlorophenol, n-amyl-o-chlorophenol, tert-amyl-or-chlorophenol, n – hex–

o-chlorophenol, n-heptyl-o-chlorophenol, o-benzyl-p-chlorophenol, or-benzyl-m-methyl-p-chlorophenol, or-benzyl-m, m-dimethyl- p-chlorophenol, or -phenylethyl- p-chlorophenol, o-phenylethyl-m-methyl-p-chlorophenol, 3-methyl-p-chlorophenol, 3,5-dimethyl-p- chlorophenol, 6-ethyl-3-methyl-p-chlorophenol, 6-n– propyl-3-methyl-p-chlorophenol, 6-iso-propyl-3-methyl-p-chlorophenol, 2-ethyl- 3,5-dimethyl-p-chlorophenol, 6-sec-butyl-3-methyl-p- chlorophenol, 2-isopropyl-3,5-dimethyl-p-chlorophenol, 6-diethylmethyl-3-methyl-p-chlorophenol, 6-iso-propyl-2-ethyl-3-methyl-p-chlorophenol, 2-sec- amyl-3,5-dimethyl-p-chlorophenol, 2-diethylmethyl- 3,5-dimethyl-p-chlorophenol, 6-sec-octyl-3-methyl-p-chlorophenol, p-chloro-m-cresol, p- Bromophenol, methyl-p-bromophenol, ethyl-p-bromophenol, n-propyl-p-bromophenol, n-butyl-p-bromophenol, n-amyl-p-bromophenol, sec-amyl –P – bromophenol, n– hexyl – p – bromophenol, cyclohexyl – p – bromophenol, or – bromophenol, tert-amyl – or – bromophenol, n-hexyl-o-bromophenol, n– hexyl-o-bromophenol, n-propyl –M, m – dimethyl – or – bromophenol, 2-phenyl-phenol, 4-chloro-2-methyl-phenol, 4-chloro-3-methyl– phenol, 4-chloro-3,5-dimethyl-phenol, 2 , 4-dichloro-3,5-dimethylphenol, 3,4,5,6-tetrabromo-2-methylphenol, 5-methyl-2-pentylphenol, 4-isopropyl-3-metlfenol, for-chloro-meta-xylenol, dichloro –Meta – xylenol, chlorothymol and 5 – chloro – 2– hydroxydiphenylmethane.

Quaternary ammonium-based sanitizing agents include any cationic surfactant that is known or found, which provides a broad antibacterial or sanitizing function; these have been described above with reference to detersive surfactants.

As an additional chemical constituent, the pressed solid block compositions may also comprise a coloring agent that imparts either a color to the pressed solid blocks, to the water with which it is contacted, but which especially imparts color to the contained water inside the sanitary apparatus. In cases where the sanitary apparatus is a toilet, the coloring agent desirably imparts a color to the water contained inside the tank, or inside the toilet bowl, in particular following the cycle of flushing a toilet discharge, or you can impart a color in both locations. Such coloring agents have a great appeal to the consumer, and in fact any coloring agent of the known art can be provided in any effective amount in order to impart a coloring effect. Coloring agents, especially coloring agents, are preferred when formulated as dry powders to allow direct incorporation into pressed solid blocks, however, liquid coloring agents may be employed in conjunction with suitable carriers. Useful coloring agents include any materials that can provide a desired coloring effect. Exemplary useful coloring agents include dyes, for example, Alizarine Light Blue B (CI 63010), Letter Blue VP (CI 24401), Acid Green 2G (CI 42085), Astragon Green D (CI 42040) Supranol Cianine 7B (CI 42675), Maxilon Blue 3RL (CI Basic Blue 80), acid yellow 23, acid violet 17, a direct violet dye (Direct violet 51), Drimarine Blue Z – RL (CI Reactive Blue 18), Alizarine Light Blue H– RL (CI Acid Blue 182), FD&C Blue No. 1, FD&C Green No. 3 and Acid Blue No. 9. When a bleaching constituent is included in the pressed solid block composition, the coloring agent, for example, a colorant , must be selected in order to ensure the compatibility of the coloring agent with the bleaching constituent, or in such a way that its color persists despite the presence in the toilet bowl of a concentration of hypochlorite that is effective in maintaining conditions of sanitation. Frequently, however, a pressed solid block composition that includes a bleaching constituent does not comprise any coloring agent. Desirably, the coloring agents, when present, do not exceed 15% by weight of the pressed solid block composition, although, in general, smaller amounts are usually effective. When present, the coloring agents are desirably present in an amount of about 0.1 to 15 percent of the total weight of the chemical composition.

Pressed solid block compositions may include a fragrance or other air treatment constituent. The fragrance can be any composition known in the art to provide a perceptible benefit of aromatization, and can be based on materials that occur in nature such as one or more essential oils, or it can also be based on compounds that are produced in a manner synthetic Examples of essential oils include pine oil, natural anethole 20/21, Chinese star anise essence, globe brand anise essence, balm (Peru), basil essence (India), black pepper essence, oleoresin from 40/20 black pepper, Bois de Rose (Brazil) FOB, borneol flakes (China), camphor oil, White, synthetic technical oil of camphor powder, cananga oil (Java), cardamon oil, cassia oil ( China), cedar wood oil (China) BP, cinnamon bark oil, cinnamon leaf oil, citronella essence, aromatic clove bud oil, aromatic clove leaf, coriander (Russia), coumarin 69 ºC ( China), cyclamen aldehyde, diphenyl oxide, ethyl vanillin, eucalyptol, eucalyptus oil, citrus eucalyptus, fennel oil, geranium oil, ginger oil, ginger oleoresin (India), white grapefruit oil, guaiac wood oil , Gurjun balm, heliotropin, isobornyl acetate , isolongifolene, juniper berry oil, L-methyl acetate, lavender oil, lemon oil, lemongrass oil, distilled lime oil, cubeba litsea oil, longifolene, menthol crystals, methylcedrylacetone, methylchavicol, salicylate methyl, abelmosco musk, musk-scented ketone, xylol musk, nutmeg essence: orange essence, patchouli essence, peppermint oil, phenylethyl alcohol, allspice oil, allspice oil, Rosalina, sandalwood, sandenol, sage oil, Roman sage, sassafras oil, spearmint oil, Lavandula spica, Tagetes, tea tree oil, vanillin, vetyver oil (Java), gaulteria oil.

Many of these essential oils function as a fragrance agent, fragrance agent that can be a substance or a mixture of various substances, including those that are derived naturally (that is, obtained by the extraction of a flower, herb , cocoon or plant), those that are derived or produced artificially (it is

that is, a mixture of natural oils and / or oil constituents), and substances that are produced synthetically (odoriferous substances). In general, fragrance agents are complex combinations or mixtures of various organic compounds, which includes but is not limited to certain alcohols, aldehydes, ethers, alamic compounds and varying amounts of essential oils such as from about 0 to about 25% by weight, usually from about 0.05 to about 12% by weight, the essential oils themselves being volatile odoriferous compounds and also functioning to aid in the dissolution of the other components of the fragrance agent. The precise composition of the fragrance agent desirably emanates a pleasant fragrance, although the nature of the fragrance agent is not critical.

As noted above, in conjunction with or in the absence of a fragrance constituent, pressed solid block compositions may comprise an air treatment constituent. This may be any other material that is useful in the provision of ambient air treatment, such as a sanitizing agent, for example, one or more glycols or alcohols, or materials that are intended to counteract, neutralize or mask odors in the absence. of, or in conjunction with, the fragrance composition. Alternatively, the air treatment constituent may be one or more materials that provide an effective insect repellent or insecticide benefit; This would be particularly useful in climates or environments in which insects pose a nuisance or danger to health.

As additional chemical constituents, pressed solid block compositions may comprise a lime descaling agent, which can be generally classified as a cleaning agent because it provides a cleaning effect to treated toilet device surfaces. The lime descaling agent may be virtually any lime descaling agent compositions known to those skilled in the relevant art, for example, compositions containing anionic and / or non-ionic surfactants together with typical lime descaling agents, for example, amidosulfonic acid, bisulfate salts, organic acids, organic phosphoric salts, alkali metal polyphosphates, and the like. Examples of lime descaling agent compositions can be found in, for example, US Pat. Nos. 5,759,974; 4460490; and 4578207. Additional examples of lime descaling agents include organic acids (eg, citric acid, lactic acid, adipic acid, oxalic acid and the like), organic phosphoric salts, alkali metal polyphosphates, sulfamic and sulfonic acids and salts thereof, salts of bisulfate, EDTA, phosphonates, and the like.

Pressed solid block compositions may comprise stain inhibition materials. The solid block composition, for example, includes an effective amount of a manganese stain inhibitor that is advantageously included, in which the sanitary apparatus is supplied by a water source, which has an appreciable or high amount of manganese. . It is known that this water, which has a high manganese content, frequently deposits unsightly stains on the surfaces of sanitary appliances, especially when the solid block composition also contains a source of bleach that provides a hypochlorite. To counteract such an effect, the solid block composition may comprise a manganese stain inhibition agent, such as a partially hydrolyzed polyacrylamide having a molecular weight of about 2,000 to about 10,000, a polyacrylate with a molecular weight of about 2,000 to about 10,000, and / or copolymers of maleic acid and ethylene anhydride with a molecular weight of about 20,000 to about 100,000. When present, stain inhibition materials may comprise up to about 10% by weight of the weight of the pressed solid block composition.

Pressed solid block compositions may include one or more preservatives. Such preservatives are mainly included to reduce the growth of unwanted microorganisms within the treatment blocks that are formed from the solid block composition during storage before use or while it is used, although it is expected that Such a preservative may impart a beneficial antimicrobial effect to water in the sanitary apparatus in which the treatment block is provided. Exemplary useful preservatives include compositions that include parabens, including methyl parabens and ethyl parabens, glutaraldehyde, formaldehyde, 2-bromo-2-nitropropane-1,3-diol, 5-chloro-2-methyl- 4– isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, and mixtures thereof. An exemplary composition is a 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one combination in which the amount of any of the components may be present in the mixture at any value from 0.001 to 99.99 in weight percent, based on the total amount of the preservative. For reasons of availability, the most preferred preservatives are commercially available preservatives comprising a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, which are marketed with the trademark KATHON® CG / ICP as a currently available commercially available preservative composition from Rohm and Haas (Philadelphia, PA). Additional useful preservative compositions include KATHON® CG / ICP II, an additional commercially available preservative composition from Rohm and Haas (Philadelphia, PA), PROXEL® which is currently commercially available from Zeneca Biocides (Wilmington, DE), SUTTOCIDE®, which is currently commercially available from Sutton Laboratories (Chatam, NJ) as well as TEXTAMER® 38AD, which is currently commercially available from Calgon Corp. (Pittsburgh, PA). When present, the optional preservative constituent should not exceed about 5% by weight of the solid block composition, although, in general, smaller amounts are usually effective.

Pressed solid block compositions may include a binder constituent. The binder can be operated in part by controlling the dissolution rate of the tablet. The binder constituent can be a clay, although preferably it is a water-soluble or water-dispersible organic gel-forming polymer. It is intended that the term "gel formation", as applied to this polymer, indicates that, at the time of dissolution or dispersion in water, it first forms a gel which, after dilution with additional water, It dissolves or disperses to form a freely flowing liquid. The organic polymer essentially serves as a binder for the tablets, although, as will be appreciated, certain polymers of those intended for use in accordance with the invention also have surfactant properties and thereby serve not only as binders but also They also enhance the cleaning capacity of the tablets. Certain additional organic polymers, such as substituted celluloses, also serve as dirt antiredeposition agents. A wide variety of water soluble organic polymers are suitable for use in the solid block composition. Such polymers may be entirely synthetic, or they may be semi-synthetic organic polymers derived from natural materials. Therefore, for example, a class of organic polymers for use according to the invention are chemically modified celluloses such as ethyl cellulose, methyl cellulose, sodium carboxymethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, ethyl-hydroxyethyl-cellulose, carboxymethyl-hydroxyethyl-cellulose, and hydroxyethyl-cellulose. Another class of organic polymers that can be used include naturally derived or manufactured (fermented) polymeric materials such as alginates and carrageenan. Also, water soluble gelatin starches can be used as the optional binder constituent. Cellulose-based binders are a preferred class of binders for use in the solid block composition and may possess the property of inverse solubility, that is, their solubility decreases with increasing temperature, thereby making the tablets suitable for its use in locations that have a relatively high ambient temperature.

The optional binder constituent may also be one or more synthetic polymers, for example, polyvinyl alcohols; water soluble partially hydrolyzed polyvinyl acetates; polyacrylonitriles; polyvinyl pyrrolidones; water-soluble polymers of ethylenically unsaturated carboxylic acids, such as acrylic acid and methacrylic acid, and salts thereof; copolymers of hydrolyzed base starch and polyacrylonitrile; polyacrylamides; polymers and copolymers of ethylene oxide; as well as carboxypolymethylenes.

In the case of organic polymeric binders, it can be seen that, in general, the higher the molecular weight of the polymer, the greater the life in use of the treatment block. When present, the total binder content may comprise up to 75% by weight of the solid block composition, but is preferably 0.5 to 70% by weight, preferably 1 to 65% by weight , more preferably from 5 to 60% by weight.

The solid block composition may optionally include one or more dissolution control agents. Such dissolution control agents are materials that provide a degree of hydrophobicity to the treatment block that is formed from the solid block composition, whose presence in the treatment block contributes to the slow uniform dissolution of the treatment block when it is found. in contact with water and, simultaneously, to the controlled release of the active constituents of the solid block composition. Mono- or di-alkanol amides derived from C8-C16 fatty acids, especially C12-C14 fatty acids having a monoamine or C2-C6 diamine moiety are preferred for use as the dissolution control agents. When included, the dissolution control agent may be included in any effective amount, but desirably the dissolution control agent is present in an amount not to exceed approximately 600% by weight of the solid block composition. , although, in general, smaller amounts are usually effective. In general, in cases where the treatment block is to be used in an ITB application, the dissolution control agent is present at approximately 12% by weight, more preferably from 0.1 to 1%. 10% by weight and more preferably about 3 to 8% by weight of the solid block compositions are present, as well as in the treatment blocks that are formed therefrom. In general, in cases where the treatment block is to be used in an ITC application, the dissolution control agent is present at about 50% by weight, more preferably from 1 to 50% present. by weight and more preferably about 10 to 40% by weight of the solid block compositions are present, as well as in the treatment blocks that are formed therefrom.

Pressed solid block compositions may optionally include one or more water softening agents or one or more chelating agents, for example, inorganic water softening agents, such as sodium hexametaphosphate or other alkali metal polyphosphates or water softening agents. organic water, such as ethylenediaminetetraacetic acid and nitrilotriacetic acid and alkali metal salts thereof. When present, such water softening agents or chelating agents should not exceed about 20% by weight of the solid block composition, although, in general, smaller amounts are usually effective.

The pressed solid block composition may optionally include one or more acids or solid water soluble acid release agents, such as sulfamic acid, citric acid or sodium hydrogen sulfate. When present, such acids or solid water soluble acid release agents should not exceed about 20% by weight of the solid block composition, although, in general, they are

usually less effective amounts.

The pressed solid block compositions may include diluent materials that may be included to provide an additional volume of the solid block composition of the product, and may enhance a leaching of the surfactant constituent when the solid block composition is placed in water. Exemplary diluent materials include any alkaline earth metal salt, soluble inorganic alkali metal or hydrate thereof, for example, chlorides such as sodium chloride, magnesium chloride and the like, carbonates and bicarbonates such as sodium carbonate, sodium bicarbonate. sodium and the like, sulfates such as magnesium sulfate, copper sulfate, sodium sulfate, zinc sulfate and the like, borax, borates such as sodium borate and the like, as well as others that are known in the art but are not listed in particular in this document. Exemplary organic diluents include, among others, urea, as well as water-soluble high molecular weight polyethylene glycol and polypropylene glycol. When present, such diluent materials should not exceed approximately 80% by weight of the pressed solid block composition, although, in general, smaller amounts are usually effective. Preferably, a sulfate salt, for example, magnesium sulfate, copper sulfate, sodium sulfate, zinc sulfate and the like and, in particular, sodium sulfate, are necessarily present in the pressed solid block composition and in the treatment blocks that are formed therefrom.

The pressed solid block composition and the treatment blocks that are formed therefrom may include one or more charges. Such fillers are normally particulate solid water insoluble materials, which may be based on inorganic materials such as talc or silica, particulate organic polymeric materials such as finely crushed water insoluble synthetic polymers. When present, such fillers should not exceed approximately 30% by weight of the pressed solid block composition, although, in general, smaller amounts are usually effective.

Preferably, the pressed solid block of the invention includes silica. It has been observed that silica helps control the dissolution rate of pressed solid blocks.

The pressed solid block composition and the treatment blocks formed therefrom may include one or more additional auxiliary processing agents, for example, the solid block composition may also include other bonding ingredients and / or plasticizers that they serve to aid in the manufacture thereof, for example, polypropylene glycol can be used, having a molecular weight of about 300 to about 10,000 in an amount up to about 20% by weight, preferably about 4% to about 15% by weight of the mixture. Polypropylene glycol reduces melt viscosity, acts as a mold release agent and also acts to plasticize the block when the composition is prepared by a casting process. Other suitable plasticizers such as fractions of pine oil, d-limonene, dipentene and ethylene oxide-propylene oxide block copolymers can be used. Other useful auxiliary processing agents include tablet preparation lubricants such as metal stearates, stearic acid, waxes or paraffin or sodium borate oils, which facilitate the formation of the treatment blocks in a tablet preparation press or die.

An auxiliary processing agent that is advantageously used is a diester constituent that can be represented by the following structure:

in which:

R1 and R2 may independently be C1-C6 alkyl which may be optionally substituted, Y is (CH2) x, where x is 0–10, although it is preferably 1–8, and while Y can be a remainder phenyl or linear alkyl, desirably AND includes one or more oxygen atoms and / or is a branched moiety.

Exemplary diester constituents include the following diester compounds according to the preceding structure: dimethyl oxalate, diethyl oxalate, diethyl oxalate, dipropyl oxalate, dibutyl oxalate, diisobutyl oxalate, dimethyl succinate, succinate of diethyl, diethylhexyl succinate, dimethyl glutamate, diisoestearyl glutamate, dimethyl adipate, diethyl adipate, diisopropyl adipate, dipropyl adipate, dibutyl adipate, diisobutyl adipate, dihexyladipate, di-C-di-12 adipate , dicapril adipate, dicetyl adipate, diisodecyl adipate, diisocetyl adipate, diisononyl adipate, diheptylundecyl adipate, ditridecyl adipate, diisoestearyl adipate, diethyl sebacate, diisopropyl sebacathode sebacato, sebacaprodyl sebacato, sebacathode sebacate of diisocetyl, dimethyl brasylate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate.

Preferred diester constituents include those in which Y is - (CH2) x– in which x has a value of 0–6, preferably a value of 0–5, more preferably a value of 1–4, while R1 and R2 are alkyl groups

C1-C6 which may be a straight chain alkyl but preferably are branched chain, for example, iso- and tert-moieties. In particular, preferred diester compounds are those in which the compounds terminate in ester groups.

An additional auxiliary processing agent that is advantageously used is a hydrocarbon solvent constituent. The hydrocarbon solvents are immiscible in water, they can be linear or branched, saturated or unsaturated hydrocarbons having from about 6 to about 24 carbon atoms, which preferably comprise from about 12 to about 16 carbon atoms. Saturated hydrocarbons are preferred, as are branched hydrocarbons. Such hydrocarbon solvents are normally available as technical grade mixtures of two or more specific solvent compounds, and are often petroleum distillates. Non-limiting examples of some suitable linear hydrocarbons include decane, dodecane, decene, tridecene, and combinations thereof. Mineral oil is a particularly preferred form of a useful hydrocarbon solvent. Additional preferred hydrocarbon solvents include paraffinic hydrocarbons, which includes both linear and branched paraffinic hydrocarbons. The above are commercially available as NORPAR solvents (from ExxonMobil Corp.) while the latter are available as ISOPAR solvents (from ExxonMobil Corp.) Branched hydrocarbon mixtures, especially as isoparaffins, form a particularly preferred additional form of a solvent of useful hydrocarbon. Particularly useful isoparaffin technical grade mixtures include mixtures of isoparaffinic organic solvents, which have a relatively narrow boiling range. Examples of these commercially available isoparaffinic organic solvents include ISOPAR C, which is primarily described as a mixture of C7-C8 isoparaffins, ISOPAR E, which is primarily described as a mixture of C8-C9 isoparaffins, ISOPAR G, which is primarily described as a mixture of C10-C11 isoparaffins, ISOPAR H, which is mainly described as a mixture of C11-C12 isoparaffins, ISOPAR J, ISOPAR K, which are mainly described as a mixture of C11-C12 isoparaffins, ISOPAR L, which is mainly described as a mixture of C11-C13 isoparaffins, ISOPAR M, which is mainly described as a mixture of C13-C14 isoparaffins, ISOPAR P and iSOPAR V, which are mainly described as a mixture of C12-C20 isoparaffins.

When present, such additional auxiliary processing agents are normally included in amounts of up to about 30% by weight, preferably up to 20% by weight of the solid block composition, although, in general, they are usually effective smaller amounts

Optionally, although in some cases, preferably one or more of the preceding constituents may be provided as an encapsulated material, in particular a microencapsulated material. That is, amounts of one or more constituents covered or encapsulated in an encapsulation material are provided. Suitable procedures for such an encapsulation include the usual procedures and also the encapsulation of the granules by a melt consisting, for example, of a water-soluble wax, coacervation, complex coacervation and surface polymerization. Non-limiting examples of useful encapsulation materials include, for example, water soluble, water dispersible or water emulsifiable waxes and polymers. Advantageously, the reactive chemical constituents, in particular the fragrance composition when present, can be provided in an encapsulated form in order to ensure that they do not degrade prematurely during the processing of the constituents used to form the block composition. Pressed solid and that these are retained with minimal degradation in the pressed solid block composition before use. The use of water-soluble encapsulation material is preferred because it will release the one or more chemical constituents when the pressed solid block composition comes into contact with the water that is supplied either in the tank or in the toilet bowl .

Ideally, pressed solid blocks exhibit a density greater than that of water, which ensures that they will sink when suspended in a body of water, for example, water present inside a cistern. Preferably, the treatment blocks that are formed from the solid block composition exhibit an excess density of approximately 1 g / cm 3 of water, preferably an excess density of approximately 1.5 g / cm 3 of water and more preferably a density of at least about 2 g / cm3 of water.

Although the mass of pressed solid blocks can vary, and an amount of up to and including 500 grams can be put into practice, in general the mass of pressed solid block compositions does not exceed approximately 150 grams. Advantageously, the mass of the pressed solid blocks is between approximately 20 and 100 grams. It is appreciated that pressed solid blocks having a large mass should provide a longer service life of the basketless toilet devices, the reciprocal being equally true.

The pressed solid blocks may also be provided with a coating of a water soluble film, such as polyvinyl acetate, following the formation of the treatment blocks from the referred solid block composition. This may be desired for improved handling, however, this is often unnecessary because preferred embodiments of the compressed blocks exhibit a likelihood of adhering to each other following manufacturing less than many technique treatment block compositions. previous.

It will be appreciated by those skilled in the art that several of the components that are intended to provide a chemical composition can be combined to give a chemical composition, with the additional appreciation that a potential combination of incompatible components will be avoided, for example, experts in The art will appreciate that certain anionic surfactants may have to be avoided because some may be incompatible with certain sanitizing agents and / or certain lime descaling agents, which are mentioned herein. Those skilled in the art will appreciate that the compatibility of the anionic surfactant and the various lime sanitizing and descaling agents can be easily determined and thus incompatibility in situations can be avoided.

Pressed solid blocks may be composed of a single chemical composition, or they may be composed of two (or more) different chemical compositions that may be provided as separate regions of a solid block, such as a first layer of a solid block consisting of a first chemical composition, together with a second layer of a solid block consisting of a second chemical composition that is different from the first chemical composition. The block may also be composed of two or more separate blocks that are simply layered or otherwise mounted, with or without the use of an adhesive. Additional layers of even more different chemical compositions may also be present. Reference may be made to such solid blocks, which are formed having two or more discrete layers or regions of, respectively, two or more different chemical compositions, such as composite blocks.

Any form of the pressed solid blocks can also be provided with a coating film or coating layer, such as a water-soluble film that is used to wrap the chemical composition provided in the device, a film that provides a vapor barrier when it is dry, but it dissolves when in contact with water. Alternatively, pressed solid blocks can be sprayed

or immersed in a bath of a water soluble film forming constituent, and then removed, thereby allowing the water soluble film forming constituent to dry and form a coating layer on the pressed solid block.

Exemplary materials that can be used to provide such a coating on some

or all of the surfaces of the pressed solid block compositions include one or more of the following: Rhodasurf TB-970, which is described by its supplier as a tridecyl alcohol having an ethoxylation degree of about 100, which has an HLB of 19, and showing a melting point in the range of 52 to 55 ° C; Antarox F-108, which is described as an EO-PO block copolymer that has an ethoxylation degree of about 80% and that has a melting point in the range of 54 to 60 ° C; additional materials, including those identified as Pluriol Z8000 and Pluriol E8000, which are believed to be optionally substituted high molecular weight polyethylene glycols ("PEG"), having a sufficiently high molecular weight such that they have a point of melting of at least 25 ° C, preferably a melting point of at least about 30 ° C can also be used. It is also contemplated that other water soluble materials are desirably useful, those that have a melting point in the range of about 30 to 70 ° C, and that can be used to provide a water soluble or water dispersible coating on the blocks Pressed solids, especially synthetic or naturally occurring wax materials, and high molecular weight polyalkylene glycols, especially polyethylene glycols. Some of these coating materials may be surfactants. In general, such materials can be provided as a dispersion in water, an organic solvent or in an aqueous / organic solvent, but preferably they are used as supplied by their respective supplier and heated to at least their melting points in order to form a liquid bath Conveniently, the pressed solid blocks fixed to the plate of a hanger are then conveniently immersed in said bath, thereby providing a coating layer to the pressed solid blocks. Alternatively, the coating materials can be sprayed, applied by brush or as a filler on at least part of the surfaces of the pressed solid blocks formed above.

The application of a water-soluble film or coating is preferred in certain embodiments of the invention, because the surface film can facilitate the handling of the blocks during packaging and storage, before using the basketless toilet devices. In addition, the application of a water soluble film or coating is preferred, because certain preceding water soluble film compositions can impart a desirable surface gloss to the compressed toilet blocks.

Preferably, the pressed solid block compositions useful in basketless toilet devices include those comprising at least one surfactant, preferably at least one anionic or non-ionic surfactant.

Next, in the following table, exemplary compositions are shown that can be used to form the pressed solid blocks; the amounts indicated are in% by weight of the constituent "as supplied" which is used to form an example of block compositions, which are labeled A to F.

Component

TO B C  AND F

Nade dodecyl benzenesulfonate

25  10  40  35 35

Na2 alpha-olefin sulphonate

 25 10 5 32 32

lauryl – monoethanolamide3

10 8 5 2 5

lauryl – ether – sodium sulfate4

 10 - - 4,5 5

Pluronic 685

10 - - 3 -

Na sulfate

twenty - - 21.5 twenty-one

Pluronic 87 or 886

- 70  fifty - -

ethoxylated alcohol C9 – C11 6EO7

- 2 - - -

silica

- - - 2 2

titanium dioxide

0.0001 - 10 0.0001 - 10 0.0001 - 10 0.0001 - 10 0.0001 - 10

1 sodium dodecyl-benzenesulfonate (80-90% active) - anionic 2 sodium alpha-olefin sulphonate - anionic 3 lauryl-monoethanolamide - non-ionic 4 lauryl ether-sodium sulfate (70% active ingredient) - anionic 5 polyoxyethylene (160) polyoxypropylene (30) glycol - non-ionic 6 Pluronic 87 E61 P41.5 E61 - molecular weight 7.700 - HLB 24 - Pluronic non-ionic 88 E98 P41.5 E98 - molecular weight 10.800 - HLB 28 – non-ionic 7 ethoxylated C9 alcohol –C11 6EO - non-ionic

Exemplary additional bleach-containing compositions that can be used to form the pressed solid blocks include compositions indicated in the following table, which have the general ranges as follows:

% by weight /% by weight

alpha-olefin sulfonate

0–35

Sodium lauryl ether sulfate

3.0–6.0

bleaching agent (for example, DCCNa or hydantoin)

 0.5–25

lauryl – monoethanolamide

 2.0–5.0

Na dodecyl benzenesulfonate

50–70

anhydrous Na sulfate

15–25

silica

 1.0–2.0

titanium dioxide

0.0001 - 10

5 Additional exemplary preferred embodiments of blocks that are useful as pressed solid blocks include those comprising:

10 to 35% by weight, preferably 15 to 30% by weight of an anionic alpha-olefin sulfonate surfactant;

10 from 10 to 35% by weight, preferably from 15 to 30% by weight of a linear monoethanolamide; from 5 to 50% by weight, preferably from 15 to 35% by weight of an anionic linear dodecylbenzenesulfonate surfactant; from 5 to 50% by weight, preferably from 20 to 35% by weight of sodium sulfate from 0.001 to 10% by weight of titanium dioxide

15 from 0.1 to 15% by weight, preferably from 0.5 to 5% by weight of silica from 0.1 to 25% by weight, preferably from 1 to 10% by weight of sodium lauryl ether sulfate optionally up to 40% by weight of additional additive constituents, which includes but is not limited to surfactants, fillers, binders, fragrances, auxiliary processing agents such as lubricants and auxiliary preparation agents of tablets, bleaches, compositions of

20 sanitation and similar, additional.

More additional exemplary compositions that include a bleach constituent, which find use as pressed solid blocks include those listed in the following tables, and which are labeled G to N: The identity of the constituents used to form The preceding pressed solid blocks G-O is identified more specifically in the following table.

G

H I J K L

dodecylbenzenesulfonate, sodium salt (80%)

27.0 22.0 32.0 35.00 37.8 32.0

sodium C14 / C16 olefin sulphonates (80%)

15.0 20.0 15.0 22.0 23.62 20.0

silica

2.0 2.0 2.0 2.0 1.89 2.0

lauramide – monoethanol – amide (98%)

30.0 30.0 25.0 15.00 12.28 20.0

sodium sulfate

20.5 20.5 20.5 20.50 18.90 20.5

dichlorocyanurate dihydrate, sodium salt (56% bleach)

2.5 2.5 2.5 2.4 2.41 2.5

paraffinic hydrocarbons

3.0 3.0 3.0 3.1 3.09 3.0

titanium dioxide

0.0001 0.0001 0.0001 0.0001 0.0001 0.0001

–10

–10

–10

–10

–10

–10

M

N OR

dodecylbenzenesulfonate, sodium salt (80%)

35.0 37.0 32.0

sodium C14 / C16 olefin sulphonates (80%)

22.0 25.0 20.0

silica

2.0 2.0 2.0

lauramide – monoethanol – amide (98%)

15.0 10.0 20.0

sodium sulfate

20.5 20.5 18.5

dichlorocyanurate dihydrate, sodium salt (56% bleach)

2.5 2.5 2.5

paraffinic hydrocarbons

3 3 5

titanium dioxide

0.0001 –10 0.0001 –10 0.0001 –10

dodecylbenzenesulfonate, sodium salt (80%)

anionic surfactant, dodecylbenzenesulfonate, 80% by weight of active ingredients

sodium C14 / C16 olefin sulphonates (80%)

anionic surfactant, olefin-C14 / C16 sodium sulphonates, 80% by weight of active ingredients

silica

Anhydrous silica filler, 100% by weight of active ingredients.

lauramide – monoethanol – amide (98%)

solubility control agent, lauramide-monoethanol-amide, 98% by weight of active ingredients

sodium sulfate

diluent, sodium sulfate, 100% by weight of active ingredients

dichlorocyanurate dihydrate, sodium salt (56%)

constituent of bleach, dichlorocyanurate dihydrate, sodium salt, 56% by weight of active ingredients of bleach

Isopar M

hydrocarbon solvent, isoparaffinic organic solvents, 100% by weight of active ingredients

mineral oil

hydrocarbon solvent, mineral oil, 100% by weight of active ingredients

paraffinic hydrocarbons

hydrocarbon solvent, white paraffin oil, 100% by weight of active ingredients

titanium dioxide

anhydrous titanium dioxide

Even more exemplary compositions, which include diisopropyl adipates that find use as pressed solid blocks, include those listed in the following tables, and which are labeled P to W:

P

Q R S

dodecylbenzenesulfonate, sodium salt (80%)

55.85 58.85 62.51 62.51

silica

2.41 2.41 2.56 2.56

lauramide – monoethanolamide (98%)

6.01 6.01 6.38 6.38

sodium sulfate

12 12 12.75 12.75

dichlorocyanurate dihydrate, sodium salt (56%)

14.63 14.63 9.32 9.32

diisopropyl adipate

6.1 6.1 6.48 6.48

T

OR V W

dodecylbenzenesulfonate, sodium salt (80%)

58.61 67.27 69.25 70.83

silica

2.40 1.91 1.96 2.01

lauramide – monoethanolamide (98%)

5.98 4.74 4.88 4.99

sodium sulfate

11.95 17.37 17.88 18.29

dichlorocyanurate dihydrate, sodium salt (56%)

14.6 4.98 2.41 0.55

diisopropyl adipate

6.46 3.73 3.61 3.33

titanium dioxide

0.0001 –10 0.0001 –10 0.0001 –10 0.0001 –10

The identity of the constituents used to form the preceding pressed solid blocks, which are labeled P to W, is more specifically identified in the following table:

silica

anhydrous silica, 100% by weight of active ingredients.

lauramide – monoethanolamide (98%)

solubility control agent, lauramide-monoethanolamide, 98% by weight of active ingredients

sodium sulfate

diluent, sodium sulfate, 100% by weight of active ingredients

dichlorocyanurate dihydrate, sodium salt (56%)

constituent of bleach, dichlorocyanurate dihydrate, sodium salt, 56% by weight of active ingredients of bleach

diisopropyl adipate

constituent of diester, diisopropyl adipate, 100% by weight of active ingredients

titanium dioxide

anhydrous titanium dioxide

More additional exemplary compositions, including paraffinic hydrocarbon or mineral oil solvents that find use as pressed solid blocks, include those listed in the following tables, and which are labeled AA to AK:

AA

AB AC AD AE

dodecylbenzenesulfonate, sodium salt (80%)

65.8 65.8 65 64.17 69.25

silica

2.69 2.69 2.66 2.63 1.96

lauramide – monoethanolamine (98%)

6.72 6.72 6.64 6.55 4.88

sodium sulfate

13.42 13.42 13.26 13.09 17.88

dichlorocyanurate dihydrate, sodium salt (56% bleach)

8.89 8.89 8.78 9.57 2.41

Isopar M

2.47 2.47 - - -

mineral oil

- - 3.66 3.99 3.61

titanium dioxide

0.0001 –10 0.0001 –10 0.0001 –10 0.0001 –10 0.0001 –10

AF

AG AH To the AJ AK

dodecylbenzenesulfonate, sodium salt (80%)

70.83 69.25 69.25 69.25 70.83 68.31

silica

2.01 1.96 1.96 1.96 2.01 2.90

lauramide – monoethanolamine (98%)

4.99 4.88 4.88 4.88 4.99 4.88

sodium sulfate

18.29 17.88 17.88 17.88 18.29 17.88

dichlorocyanurate dihydrate, sodium salt (56% bleach)

0.55 2.41 2.41 2.41 0.55 2.41

Isopar M

3.33 3.61 3.61 - - 3.61

mineral oil

- - - 3.61 3.33 -

titanium dioxide

0.0001 - 0.0001 - 0.0001 - 0.0001 - 0.0001 - 0.0001 -

10

10

10

10

10

10

The identity of the constituents used to form the preceding blocks AA to AK is identified more specifically in the following table:

dodecylbenzenesulfonate, sodium salt (80%)

anionic surfactant, dodecylbenzenesulfonate, 80% by weight of active ingredients

silica

Anhydrous silica filler, 100% by weight of active ingredients.

lauramide – monoethanolamide (98%)

solubility control agent, lauramide-monoethanolamide, 98% by weight of active ingredients

sodium sulfate

diluent, sodium sulfate, 100% by weight of active ingredients

dichlorocyanurate dihydrate, sodium salt (56%)

constituent of bleach, dichlorocyanurate dihydrate, sodium salt, 56% by weight of active ingredients of bleach

Isopar M

hydrocarbon solvent, isoparaffinic organic solvents, 100% by weight of active ingredients

mineral oil

hydrocarbon solvent, mineral oil, 100% by weight of active ingredients

titanium dioxide

anhydrous titanium dioxide

More additional and particularly preferred embodiments of pressed solid blocks and their compositions 10 include those listed in Table 1.

The manufacture of the basketless toilet device first contemplates mixing the constituents of the composition block to give a generally homogeneous mass such as by formation of noodles, as well as by compaction, but preferably by extrusion, and then forming a " preform ”from a measured amount of the homogeneous mass. Usually, all of the solid ingredients are mixed in any suitable combination equipment, followed by the addition of liquid ingredients under combination conditions. In an extrusion process, a mixture of the chemical constituents that is used to finally form the pressed solid block composition is manufactured, followed by extrusion of this mixture to give a rod or bar shape that is then cut to give pieces or blocks of a suitable size to be used in the subsequent separate compression procedure. These pieces or blocks of extruded piece are the preforms. When the pressed solid block is formed from a single preform, a channel, cavity, or recess within the preform of suitable dimensions is required to accept at least one hanger plate. Conveniently, a channel can be provided by cutting a groove in the preform of sufficient depth and width such that the plate can be fully inserted to the inside of the preform before the subsequent compression procedure. The channel can be cut or carved such as by using a saw, or other cutting device that will either divide or shape the preform properly to provide a channel or recess of this type of suitable dimensions. Alternatively, a channel can be provided by extrusion through a nozzle, which includes a blade or other cutter means that extend into the open cross-section of the nozzle, such that, as the extruded part comes out of the nozzle, this one is provided with a channel of this type that partially divides the extruded piece to give the branches of a "V", which remain, however, coupled to the base of each branch. Such a channel can extend along the length of the preform and through the ends thereof. Alternatively, after extrusion a tool such as a drill blade can be used to partially divide a part of a preform, in order to provide a cavity or groove that is of sufficient width and depth to accommodate at least the hanger plate. A cavity of this type, which is formed by such a blade, normally does not extend along the length of the preform or through the ends thereof.

In a subsequent procedure step, the plate of a hanger is inserted inside the channel or cavity, such that the plate is preferably entirely enclosed within the preform. Preferably, the hanger also extends outwardly from the preform at an angle that is approximately perpendicular to, more specifically 90 ° +/– 10 °, preferably 90 ° +/– 5 °, relative to a surface tangent from from which point the hanger extends outwardly from it. This ensures that a consistent load and adequate weight distribution of the hook and proper placement of the device without basket in the sanitary device, especially a toilet, is maintained.

Advantageously, the channel, cavity, or recess is of an essentially flat configuration and is located within the pressed solid block, such that the plate is not placed within the center of symmetry or the middle plane of said block, but rather it is placed to be parallel to a face or surface of the block, such that the plate is placed in a plane that is between 10% and 80%, preferably 30% and 70% of the distance between the surface face of said block, and the center of symmetry or the middle plane of said block. More preferably, the hanger and the pressed solid block are positioned in such a way with respect to each other that the face of said block closest to the embedded plate is on the opposite side of the hooked end of the hanger.

Alternatively, the extrudate can be of an alternative configuration, for example, a rectangular, square or flat sectional cross-sectional configuration, which is shaped as preforms. A channel, cavity, or recess within the preform is not required because, in an alternative procedure to the above, two or more discrete preforms are used together with the hanger plate that is placed between two adjacent preforms that are compressed later.

The preform comprising the hanger is then compressed into a die that imparts the final shape to the pressed solid block. This compression stage can be implemented as a single compression operation or as a series of compression stages, that is, with two or more stamping or compression operations. Advantageously, the preform (s) is placed in a die such that the plane of the hanger plate is parallel to the opposite major faces of the compression dies that are joined together. Optionally, a mold release agent, such as a wax material or an oil, such as a paraffin oil or mineral oil, can be applied to one or more die surfaces. This can improve the ease of release of the pressed solid block, and / or aid in the formation of a smooth outer surface for the pressed solid block. Following compression, the pressed solid block is fixed on the hanger, and can be removed or ejected from the die. The basketless delivery device that is formed in this way is ready for use.

As noted above, the preform used to form the pressed solid blocks can be formed from a plurality of preforms that are conveniently arranged in layers in an orderly fashion, with the hanger inserted between two preforms in the orientation that is described above, for example, two or more physically separated preforms can be arranged in layers in an orderly manner, to form a laminated pressed solid block. This may be desired when it is intended that the pressed solid block be formed from two or more masses having different chemical compositions, for example,

It also contemplates that the compressed solid mass may be formed from a first preform having a first chemical composition, compressed into a second preform having a second chemical composition that is different from the first chemical composition. By way of non-limiting example, the first preform may be of a first color, while the second preform may be of a different second color, such that, when compressed, the preforms are pressed to form a single solid pressed block. It has two differently colored layers. Of course, three or more preforms can be compressed to form a single compressed block. Again, the chemical compositions of the first, second and third preforms may be of the same composition, or of similar or different compositions.

During the compression stage, several simultaneous technical effects take place. The block compositions are densified due to compression, and at the same time the embedded hanger is sealed and mechanically anchored inside the block. Preferably, the density of the pressed solid block is at least 1.5% larger than the density of the density of the extruded piece. Preferably, the density of the pressed solid block is at least 2%, more preferably at least 3% larger than the density of the preform or extrudate from which it is formed. Additionally, during the compression stage, the channel, groove or recess that had been formed to accept the hanger is sealed to form a smooth surface. In addition, the outer surface of the composition block adopts the volume configuration and the surface shape of the die. This is, in particular, advantageous when the inner surface of the die is of smooth walls that will impart, in preferred embodiments, a smooth outer surface to the pressed solid block.

In certain particularly preferred embodiments, the pressed solid blocks weigh from 15 to 150 grams, preferably from about 20 to about 75 grams. The blocks are usually in a flattened form, having a length of about 1 to about 4 inches (about 2.54 to about 10.16 cm) and having a thickness of about 0.5 to 1.5 inches (1, 27 to 3.81 cm).

The service life of pressed solid blocks must be approximately 10 to approximately 90 days, based on 12 discharge washes per day. Preferably, the service life of the pressed solid blocks is at least about 14 days, when installed on the edge of a toilet bowl, such that said block is placed adjacent to the inner side slope wall of the cup of toilet and undergoes between 6 and 12 washings of discharge per day. Preferably, the temperature of the water that is discharged is in the range of 16 to 24 ° C. The length of life of pressed solid blocks will, of course, depend on a variety of factors, including product formulation, water temperature, tank size, number of discharge washes over the period. of use and the volume of water that comes into contact with the pressed solid blocks.

The following figures show various configurations of the basketless toilet device, which includes certain particularly preferred embodiments. In the attached figures, similar elements are indicated using the same numbers throughout the entire figures.

Figure 1 shows a suspension support 10 comprising a hook end 20, comprising an end element 12 that flexibly engages an upper element 14, as well as part of the stem 16. Hanging from the end of the stem 16 distally with respect to the hook end 20 is a plate

30. As can be seen from the perspective view provided by Figure 1, the plate itself is of a generally rectangular configuration, and this is coplanar with the configuration and construction of tape type or strip type both from rod 16 as from hook end 20. The plate 30 has a width dimension "W1", as well as a height dimension "H1" and, as shown, desirably the width is larger than the height. As can be seen from the figure, the suspension support 10 is generally symmetrical about a central line "CL" that is drawn with respect to the middle line of the stem 16. The center line does not exist as a real element of the device, but is illustrated for the purpose of convenient reference. Although it is not illustrated with sufficient particularity in the figure, it is understood, of course, that all of the plate, the rod 16 and the hooked end 20 have a thickness that can be consistent throughout all of the themselves, or that may vary.

Figure 2 shows a side view of a further embodiment of the suspension support 10 of Figure 1. As seen more clearly in this figure, the hooked end 20 is formed from first and second elements 12, 14 and on the part of the stem 16. The plate 30 is hanging from the stem 16. In the present embodiment, the plate 30 has a thickness "T1" which is larger than the thickness "T2" of the rod 16 and the hooked end 20 . Of course, it will be understood that each of the hooked end, the rod and the plate may have different thicknesses or that all may share the same thickness, as illustrated in Figure 1.

Figure 3 shows a further embodiment of a suspension support 10 according to the invention, in which the hooked end 20 is a flexible element. As can be seen from the figure, the hooked end is composed of a first element 12 that is flexibly connected to an upper element 14 which in turn flexibly connects to the stem 16. At the opposite end at the hooked end, the plate 30 hangs. With respect to the hooked end, as can be seen, at the terminal end of the first element 12 there is a widened region referred to as a "pad" 15. The region pad is the same

thickness than the first element 12, but is slightly wider. The width of the pad end 15 is larger than the width of the first element 12. This increased width is sometimes useful for stabilizing the hooked end of the basketless toilet device when suspended over part of a sanitary appliance. As is more visible from Fig. 3, the plate 30 is of a substantially flat configuration, has a width W1 as well as height H1 and is symmetric about the center line CL of the stem 16. The plate has a edge 39 of generally linear bottom at opposite ends thereof to walls 36, 38 of generally linear end, end walls that continue and extend to the stem 16 through walls 32, 34 from top to slope.

Figure 4 shows the suspension support 10 of Figure 3, both in a "folded" and a "deployed" configuration.

As seen from the continuous line elements shown in Figure 4, the suspension support 10 in the folded configuration illustrates that, when the hooked end and the rod are unstressed, the hooked end 20 is retains in a closed configuration. In the deployed configuration, as shown by the elements shown in a dashed line format, the first element 12 'and the pad 15' extend away from the stem 16 and are positioned more distantly with respect to the stem than in the previous folded configuration. Normally, this also results in a degree of translation of the element 14 ’from above which can extend down to also include a part of the stem 16’. When manufactured from a flexible material, in the deployed configuration as shown in Figure 4, the elastic pressure of the construction material, such as a polymer, tends to result in the hook end seeking to return to the folded configuration. . However, when it is placed around the edge of a part of a sanitary device, that is, a toilet bowl, this action results in the hook end imparting a degree of grip to the part of the edge on which it is ride This in turn helps to retain the relative position of the hooked end, as well as that of the basketless toilet device until it is replaced, or removed by a consumer.

Figure 5 shows a more additional embodiment of a suspension support 10. In the present embodiment, the hanger includes a wound hook end 20 which is comprised of the first element 12, the second element 13 and an upper element 14 which is in a compressed wound arrangement, thus making it particularly convenient for its inclusion in a consumer package. The upper end of the upper element 14 extends to a rod 16 having at its opposite end a sloping plate 30. In the present configuration, plate 30 is flattened and is generally symmetrical about a center line (CL). The plate has a width dimension (W1) as well as a height dimension (H1). In addition, the plate illustrates that it can be produced with perforations that pass through it. In this case, two passages 33, 33 ’are generally triangular, similarly shaped. As discussed above in the specification, although it is also contemplated that the hanger plate may include one or more perforations that pass through it, for reasons that are observed even though they are not fully understood still by the applicants of the present invention, it is believed that the use of plates having such perforations passing through them is preferably to be avoided, because they can undesirably reduce the service life of the toilet device without basket

Figure 6 shows a more additional embodiment of a suspension support 10. As shown, the hanger includes a hook end that is composed of the first element 12, which is flexibly connected to a second element 13, which in turn is flexibly connected to an element 14 above, which in turn flexibly connects to a part of the stem 16. The opposite end of the rod ends in a plate 30 of generally flattened shape having a width dimension (W1), a height dimension (H1), in the that the plate is generally symmetrical around the center line (CL) as shown in the dotted line drawn in Figure 6. While the hanger is represented in a folded or otherwise wound configuration, it should be understood that the hook end can be extended by a user of the hanger and the basketless toilet device to reconfigure said hook end 20 to form a hook end that can be used to suspend the hanger and the device nodoro without basket on a part of a sanitary device, in particular a toilet bowl edge. The embodiment according to Figure 6 also illustrates that, according to preferred embodiments, the plate 30 is substantially flat and, as shown in Figure 6, it is of a generally uniform thickness. The embodiment shown in Figure 6 is preferred because the hooked end is particularly well wound when it is in its folded configuration, although when unrolled or in its deployed configuration, it provides a significant degree of tension that is useful for retain the respective position of the toilet device without a basket when installed on a sanitary appliance, in particular when the hook is fixed on a part of a toilet bowl edge. Additionally, Figure 6 shows that this embodiment also includes an inclined neck 17 that is formed as part of the stem 16 and immediately adjacent to the region of the plate 30 that connects to the stem 16. As shown, the neck places the plate in a position that is below the largest part of the stem 16 but which is parallel thereto. This positioning below the greater part of the stem 16 is beneficial and finally, it also acts to place the pressed solid block that covers the plate 30 in such a way that, when mounted on a toilet bowl, the solid block Pressing is in contact with, or is very close to, the inner side slope wall of a toilet bowl. Such positioning is advantageous because it ensures that the pressed solid block remains in the flow path of the wash discharge water throughout the entire service life of the basketless toilet device.

Figures 7A to 7D show several alternative configurations, which can also be used for the plate 30 for the hanger as described herein. Figure 7A shows a diamond-shaped plate 30 that hangs from a vertex from the stem 16. Figure 7B shows a substantially circular plate 30 that hangs from a part of its circumference from the stem 16. Figure 7C shows a plate 30 in the shape of an equilateral triangle that hangs from a vertex from the stem 16. Figure 7D shows an additional plate 30 that is generally rectangular, but has two opposite semicircular ends that hang from the stem 16. In each case of the preceding , it is seen that the configuration of the plates is generally symmetrical around the center line, CL.

Figure 8 shows an embodiment of a part of the hanger in which the plate 30 includes a series of perforations 33 passing through it. As shown, the perforations are not symmetrical with respect to either the center line CL or the configuration of the plate 30 in a semicircular manner. As noted above, the plates 30 having perforations passing through them are less preferred embodiments of the suspension brackets and useful with the basketless toilet devices taught herein.

Figures 9A and 9B show in two views an embodiment of a plate 30 hanging from a rod 16, in which the plate comprises at least one, in this case a plurality of projections 35 extending outwardly from the faces 37, 37 'generally flat and opposite of the plate. As seen in particular in Figure 9B, the projections 35 are in the form of generally cylindrical studs, which have a base coinciding with the respective face 37, 37 'of the plate 30. The studs terminate at flat ends. The studs have a height that is approximately equal to, or slightly larger than, the thickness of the plate

30. Again, although these figures show the utility of outwardly extending elements, which extend outwardly from the plate, again, as noted above, the hanger embodiments are less preferred. It has such elements that extend outward from the plate.

Figures 10A and 10B show two views of an embodiment of a toilet device 10 without a basket in two parts. Figure 10A shows a perspective view of a hooked end 20, comprising a first element 12, a top element 14 and a front element 14 'having, from a part thereof, a hanger pin 40 . The hooked end 20 is configured to be suspended over the edge of a "WC" toilet bowl and can be used only once, but desirably used several times by a consumer. The second part of the basketless toilet device 10 of the invention includes a rod 16 having at one proximal end an eyelet or loop 44 of sufficient dimensions, such that the rod 16 can be removably attached to and suspended from of the hanger pin 40. The stem 16 extends downwardly from the proximal end to the distal end and includes an inclined neck 17, which terminates in the plate 30 which is enclosed in a pressed solid block 50. This second part can be installed by a user and, when the pressed solid block 50 is consumed, this second part can be removed by the consumer and replaced with an additional second part with a new pressed solid block 50 and used.

As shown more clearly in Figure 10B, the hook end 20 is mounted on a part of an "R" edge of a "WC" toilet bowl. The second part is suspended by the eyelet 44 in such a way that the pressed solid block 50 is placed adjacent to or on the inner side wall "SW" of the WC toilet bowl. In this way, the wash discharge water that is released from the edge down to the toilet bowl WC comes into contact with the pressed solid block 50 to form a treatment composition that is used to treat the toilet bowl.

While a hanger pin 40 and a cooperative eyelet 44 exemplified an embodiment of useful fastening means that can be used to mount a toilet device 10 without a basket, it is also contemplated that any other effective means, in particular some mechanical means and / or chemical means, although they are not specifically shown in the figures.

Figures 11A and 11B show two views of an embodiment of a toilet device 10 without a two-part basket that is configured for use as an ITC device.

Figure 11A shows a perspective view of a two-part basketless toilet device 10 comprising a first part, a rigid hook end 20 adapted to be suspended on the edge "R" of a toilet cistern "C", and a second part, a rod 16 having an inclined spike-shaped proximal end 46, inserted in a suitably shaped mortise 19, present at the hook end 20 and, at its distal end, a plate 30 which is enclosed by a solid pressed block 50. The rod 16 is of sufficient length so that, between the flushing washes of the toilet to which it is attached, the block 50 is submerged below the water line "WL", so that the water comes into contact with the block 50 to form a treatment composition inside the cistern C.

Figure 11B shows one from above of the toilet device 10 without basket in two parts of Figure 11A. As can be seen more clearly, mortise 19 includes two inclined mortise walls 19 ’that abut against spike lateral walls 46’ correspondingly formed of proximal end 46

of the stem 16. Furthermore, as is more evident from FIG. 11A, it is seen that the cross-section of the spike side walls 46 'of the proximal end 46 of the stem 16 also decreases inwardly towards each other, as well as the two side walls 19 'inclined mortise that are configured to fit accordingly.

Figure 12A and Figure 12B respectively show a front sectional view of a pressed solid block 50 enclosing / covering a plate 30 that hangs from a rod 16, while Figure 12B shows the side view of the preceding one. As shown in Figure 12B, a pressed solid block 50 is shown that encloses the plate 30 as well as the stem 16, which extends outwardly from the pressed solid block. The pressed solid block has a thickness "TB", as well as a height "HB". Figure 12B illustrates a preferred embodiment, namely, in which the plate 30 is placed inside the block 50 and is in a plane parallel to the middle plane "MP" that bisects the block 50 and is between the plane half MP and the front face 53 of the block 50. The front face 53 of the block 50 is the face that is oriented towards the inside of a sanitary appliance, in this case the inside of a WC toilet bowl, while it is intended that the rear face 55 be placed adjacent to,

or butt, the inner side wall SW of the WC toilet bowl.

In addition, a sectional line "ZZ" is shown in Figure 12B which is intended to indicate a cross section of the block 50 coinciding with a face of the plate 30. Turning to Figure 10A, this sectional view is shown to which it makes reference. As can be understood with reference to the figure, the cross-sectional area of the base has a dimension 30A, which is less than about half of the surface area AB of the section of the pressed solid block 50 that is coincident with the face of the plate 30. More precisely, it is to be understood that the calculation of the respective relations of the plate area, 30A with respect to the cross-sectional area of the block, AB, is performed by removing the plate 30 from the pressed solid block such that the area AB is clear.

Figure 13 illustrates a sectional view of a basketless toilet device installed inside a WC toilet bowl. The embodiment illustrated in the following figures 14A, 14B and 14C. As can be seen from Figure 13, the block is placed adjacent to the inner side wall SW of the WC toilet bowl. During the discharge wash cycle, the flow of wash discharge water (indicated by the arrows "F") flows around block 50 in which the water dissolves at least part of the composition of the pressed solid block 50 for form a treatment composition that is used to treat the toilet bowl WC.

Figures 14A, 14B and 14C illustrate additional views of a toilet device 10 without basket in several views. Referring to FIG. 14A, there is shown a basketless toilet device 10 that includes a suspension support 16, which has a hooked end 20 at its proximal end and a sloped plate 30 at its distal end. which is embedded within a pressed solid block composition 50. For the purpose of clarity in these figures, the pressed solid block is illustrated in a broken line. Referring now to Figure 14B, the toilet device 10 without a basket is illustrated in a rear plan view. As illustrated in the figure, the respective areas of the plate 30A and the area AB of the block 50 in the plane are coincident with a face of the plate 30A, further illustrating a preferred relationship of these two surface areas. Figure 14C illustrates a side view of the basketless toilet device 10 illustrating the relationship of the placement of the plate 30 within the block 50. More specifically, the plane of the plate 30 is between the mid-plane MP and the face 53 front of block 50.

Fig. 15 illustrates a suspension support 10 comprising a hooked end 20, comprising an end element 12 that flexibly engages an upper element 14, as well as part of the stem 16. Hanging from the end of the stem 16 distally with respect to the hook end 20 is a plate

30. As can be seen from the perspective view provided by Figure 15, the plate itself is generally flat and flattened in shape, and this is coplanar with the configuration and construction of tape or strip type both of the stem 16 and the hook end 20. The plate 30 has a width dimension "W1", as well as a height dimension "H1" and, as shown, desirably the width is larger than the height. As can be seen from the figure, the suspension support 10 is generally symmetrical about a central line "CL" that is drawn with respect to the middle line of the stem 16. The center line does not exist as a real element of the device, but is illustrated for the purpose of convenient reference. As can also be seen in the figure, a part of the rod 16 is configured to extend backwards, namely, in the direction of the hooked end 20 to form a separation section 80. In the embodiment shown, the separation section comprises a first stem segment 82 extending rearwardly from the stem 16 to a peak point 86, and a second stem segment 84 extending rearwardly from the stem 16 to the same peak point 86. As can be seen in the embodiment shown in Figure 15, the stem 16, the first stem segment 82, the peak point 86, the second stem segment 84 and the plate 30 are all formed in one piece as parts of the suspension support 10. This is not required, although it is preferred in certain embodiments because they do not require assembly after the initial manufacture of the suspension bracket 10. As can also be seen, the separation section 80 is conveniently formed by the shape of the suspension support 10 to include the first stem segment 82, the second stem segment 84 and the intermediate peak point 86 that is formed by curves or other joints between the respective segments and between the respective segments and the stem 16 or the plate 30. In the embodiment shown, the length of the first stem segment 82 and the second stem segment 84 of section 80 of

separation are of equal lengths. Although it is not illustrated with sufficient particularity in the figure, it is understood, of course, that all of the plate, the rod 16 and the hooked end 20 have a thickness that can be consistent throughout all of the themselves, or that may vary.

Figure 16 shows a side view of a further embodiment of a suspension support 10 in parts similar to those shown in Figure 15. As seen more clearly in this figure, the hooked end 20 is formed to from first and second elements 12, 14 and from the stem 16. In the embodiment shown, the length of the first stem segment 82 and the second stem segment 84 of the separation section 80 are of different lengths, specifically the length of the first stem segment 82 is larger than that of the second stem segment 84. Hanging from the stem 16 is the plate 30. In the present embodiment, the plate 30 has a thickness "T1" that is larger than the thickness "T2" of the stem 16 and the hooked end 20. Of course, it will be understood that each of the hooked end, the rod and the plate may have different thicknesses or that all may share the same thickness, as illustrated in Figure 1.

Figures 17 and 18 show a further embodiment of a suspension support 10 in which the hooked end 20 is a flexible element, and a separation element 80 that lies between the hooked end and the hanger plate 30. The separating element 80 extends backwards from a part of the rod 16 in the same direction as the hook end 20 extends from the rod 16. Although the hook end is formed in a single piece with the rod 16 and is close to the plate 30, the separation element 80 may be a discrete element that can be fixed to a part of the suspension support 10, advantageously to a part of the rod 16 by any suitable means. Among others, such means may be mechanical means such as interlocking elements such as chemical means such as an adhesive or by welding or melting of these elements and / or cooperative snap fasteners. As can be seen from the figures, the hook end is composed of a first hook element 12, which is flexibly connected to a second hook element 13, which in turn connects to a top element 14 , which in turn flexibly connects to the rod 16. At the end of the rod 16 opposite the hooked end, namely the distal end of the rod, hangs the plate 30, which in this case has a flat flat configuration. As is more visible from Fig. 3, the plate 30 is of a substantially flat configuration, has a width W1 as well as height H1 and is symmetric about the center line CL of the stem 16. The plate has a edge 39 of generally linear bottom at opposite ends thereof to walls 36, 38 of generally linear end, end walls that continue and extend to the stem 16 through walls 32, 34 from top to slope.

Although not specifically shown in Figures 17 and 18, it should be understood that the hooked end 20 of the suspension support 10 is represented in a first "folded" configuration that allows the suspension support 10 to be compact and package conveniently. However, when at least the hook end 20 of the suspension support 10 is made of a flexible material, the hook end elements 20, especially the first hook element 12, which flexibly connects to a second element 13 of hook, it can be flexed to form hook end 20 so that it can be placed around the edge of a part of a sanitary device, that is, a toilet bowl. This action imparts tension to the hook end 20 and also results in the hook end 20 imparting a degree of grip to the part of the edge on which it is mounted. This in turn helps to retain the relative position of the hooked end, as well as that of the basketless toilet device until it is replaced, or removed by a consumer.

Figures 19A to 19F show, in several views, a preferred embodiment of a suspension support 10, both with and without the pressed solid block composition 50 that is fixed to the plate 50. The preferred hanger is advantageously used in the process for the manufacture of a basketless toilet device as described herein.

Figure 19A shows a suspension support 10 in a piece that is formed of a flexible material, for example, a thermoplastic polymer. The suspension support 10 comprises a hook end 20, comprising a first hook element 12, a second hook element 13 and a top element 14 which in turn is connected to a rod 16 extending downwards, which ends at plate 30. In between the hook end 20 and the plate 30, a part of the rod 16 is configured to extend backward, namely, in the direction of the hook end 20 to form a separation section 80. As shown, the separation section comprises a first stem segment 82 extending rearwardly from the stem 16 to a peak point 86, and a second stem segment 84 extending rearwardly from the stem 16 to the same point 86 peak. As can be seen in the embodiment shown in Figure 1, the stem 16, the first stem segment 82, the peak point 86, the second stem segment 84 and the plate 30 are all formed in one piece as parts of the suspension support 10. In the embodiment shown, the length of the first stem segment 82 and the second stem segment 84 are not equal, the first being larger than the last. The plate 30 is a generally flat flat plate having a maximum width W1 that is at least 1.2 times the dimension of its maximum height H1. The plate 30 hangs on a part of the rod 16 and is symmetrical about the center line "CL" of the rod 16. The plate 30 also has a thickness T1 and, as illustrated in the figure, has edges 31 above which they are generally linear and are angled down

with respect to the stem 16. The edges 31 above continue towards the region of the lateral vertices 32 of the plate 30, which are rounded. The plate 30 is also generally symmetrical about a line that would extend between the two lateral vertices 32 of the plate 30.

Although it is not disclosed in the figure, it should be understood that the hook end 20 is flexible and in the figures shown they are in a folded configuration. However, the hook end elements can be easily deployed by a consumer in order to adapt the suspension support 10, to be suspended on a part of a sanitary apparatus.

Figure 19B shows a front view of the hanger of Figure 19A. As can be seen in that figure, the plate 30 that is included is essentially flat and flat, and excludes any perforations that pass through it as well as excludes any that extend outwardly from either the front face 37 or well the 37 'rear face of the plate 30.

Figure 19C shows a side view of the suspension support 10 of Figures 19A and 19B above. As is more evident from the figure, the separation section 80 extends in the same direction as that of the hooked end 20 and, in particular, at least the upper element 14 extending rearwardly from the rod 16. As can also be understood from the figure, in preferred embodiments, the hooked end 20 and the separation section 80 are preferably coplanar with respect to each other, while preferably the plate 30 is approximately perpendicular to this plane , within which the hooked end 20 and the separation section 80 are coincident. The absence can also be seen more clearly, which extends outwardly from either the front face 37 or the back face 37 ’of the plate 30.

Figure 19D is a further illustration of the suspension support 10 of Figure 19C, however the figure further illustrates a pressed solid block 50 that encloses the suspension support 30 and, in this case, also part of the stem 16 immediately adjacent to the plate 30. Said block 50 is shown in a broken line for the purpose of a convenient review of the characteristics of the suspension support 10. The pressed solid block 50 has a thickness "TB", as well as a height "HB". In Figure 10D, the plate 30 is placed inside the block 50 and is in a plane parallel to the middle plane "MP" that bisects the block 50 and, in particular, is between the middle plane MP and the face 53 front of block 50. The front face 53 of block 50 is the face that faces the inside of a sanitary appliance, in this case the inside of a WC toilet bowl, while the rear face 55 is intended be placed adjacent to, or butt against, the inner side wall SW of a sanitary appliance, in particular that of a WC toilet bowl.

Figure 19E illustrates a front view of the embodiment shown in Figure 19D.

For convenience, the plate 30 that is embedded within the solid compressed block 50 is shown in a broken line. As illustrated in the figure, the respective areas of the plate 30A and the area AB of the block 50 in the plane are coincident with a face of the plate 30A, further illustrating a preferred relationship of these two surface areas.

Figure 19F illustrates a perspective view from above and side of the basketless toilet device of Figures 19D and 19E above, illustrating the relationship of the placement of the plate 30 within the block 50. More specifically, as can easily be seen. from the figure, the plane of the plate 30 is between the middle plane MP and the front face 53 of the block 50.

It is to be understood that the basketless toilet device produced a process according to the invention can also have a different geometry, configuration or appearance than the embodiments described in the figures and can still be considered to fall within the scope of the invention.

Figure 20 illustrates a series of process steps illustrating an improved process embodiment for the manufacture of basketless toilet devices disclosed herein.

With reference to Figure 20, there is represented, by means of schematic representations, a method 100 for the manufacture of toilet devices without a basket which are disclosed herein.

According to the process, a previously mixed composition block or, alternatively, the constituents that are required to form a composition block, is provided in the inlet hopper 112 of an extruder. The extruder can be a single-screw extruder or a multi-screw extruder. In cases where multiple spindles are present, the spindles can rotate in the same direction or they can rotate in the opposite direction. If it is not mixed or combined before it is introduced into the extruder, the composition block is formed of a generally homogeneous mass and exits the extruder through a suitable nozzle 114 having an orifice profile of suitable dimensions. Advantageously, the nozzle has a configuration as shown in general in Figure 21. After it exits the nozzle 114, the measured lengths or the measured masses of the extruded piece 150 are separated as by cutting, using a cutting blade or cutting chain 120 to give preforms of approximately similar dimensions and / or mass.

When the nozzle does not conform the extruded part to include a channel, cavity, or recess within the extruded part of suitable dimensions, to accept at least the plate of a hanger, an additional procedure step can be practiced, although It is not illustrated in the figure. In a channel cutting stage, channel cutting means, such as a saw or other cutting device, are applied to the extruded part or alternatively to the preforms in order to divide or shape the preform properly to provide a channel or recess of this type of suitable dimensions. A channel or recess of this type extends advantageously longitudinally through the extruded part and / or the block, which facilitates convenient positioning of the hanger plate in the following procedure step. Alternatively, after extrusion, the preforms can be partially divided using suitable tool means, such as a drill blade that can be used to partially divide a part of a preform, in order to provide a cavity or groove that is of a width and a depth sufficient to accommodate at least the hanger plate. A cavity of this type, which is formed by such a blade, normally does not extend along the length of the preform or through the ends thereof.

When the nozzle does not conform the extruded part to form a channel, cavity, or recess within the extruded part of suitable dimensions, to accept at least the plate of a hanger, an additional process step can be practiced. In such a stage, a channel cutting stage as shown in Figure 23, a channel cutting means such as a rotary winged cutter 130, saw, grooving brush, blade or other cutting device are applied ao is passed through extruded piece 150 or preforms 122 in order to divide

or forming the extruded piece 150 or preforms 122 suitably to provide a channel 134 or recess sized suitably to subsequently accommodate a part of a hanger (not shown). A channel or recess of this type extends advantageously longitudinally through the extruded piece 150 and / or the preform 122, which facilitates convenient positioning of the hanger plate in a subsequent process step.

In an alternative process step, after extrusion, the extruded piece 150 or the preform 122 can be provided with a cavity, so that it is partially divided using any suitable tool means, such as a drill blade 136 suitably sized , which can be used to partially divide a part of an extruded piece 150 or preform 122, in order to provide a cavity 137 or groove that is of sufficient width and depth to subsequently accommodate at least a part of a hanger , especially a part of a hanger (not shown). A cavity 137 of this type, which can be formed by a blade of this type, does not need to extend along the length of the preform, or through the ends thereof.

Conveniently, however, as the extruded part exits the nozzle, a channel is provided by extrusion through a nozzle that includes a blade or other cutter means extending to the interior of the open cross-section of the nozzle, so that, as the extruded part leaves the nozzle, it is provided with such a channel that partially divides the extruded part to give the branches of a "V", which remain coupled, however , at the base of each branch. Such a channel can extend along the length of the preform and through the ends thereof. Alternatively, after extrusion of a tool. An exemplary nozzle, comprising such a blade, is depicted in Fig. 21. It shows a plan view of a flat nozzle having a nozzle body 182 and a shaped hole 184 which passes into through it. Extending from one side 186 of the hole 184, there is a cutting element 188, in this case in the form of a grooving brush that extends to the inside of the hole. Advantageously, the cutting element 188 makes a channel through the extruded part that passes through the nozzle hole 184, to form an extruded part that is partially divided to give the branches of a "V" as illustrated in the Figure 22. As seen from Figure 22, the hot extruded piece tends to slightly deform and open the distance between the two branches 190, 192 of the "V", which is advantageous because this often facilitates insertion back of the plate before the die compression stage of the procedure. As can also be seen from Figure 22, in accordance with the preferred embodiments, when the extruded piece 150 of, alternatively, a preform is divided or otherwise shaped to provide a channel, cavity or groove, the thickness of the block within the two branches 190, 192 is not the same, as shown in both Figure 22 and 23. As can be seen, the thickness of a part of the block on one side of the channel 170, that is, the thickness 190T of the block part 190 has a thickness dimension smaller than the thicknesses of the block on the opposite side of the channel, namely the thickness 192T of the block part 190. Preferably, channel 170 is then formed to be on one side but not to coincide with the mid-plane MP, as discussed above. In addition, more preferably the channel height "CH" is at least half, preferably at least 60%, more preferably at least 70% of the height "H1" of the compressed block 50 at the end of the process.

In a subsequent process step, the plate 30 of a hanger is inserted inside the channel 170 or cavity such that the plate is preferably entirely enclosed within the preform. Preferably, the hanger also extends outwardly from the preform at an angle that is approximately perpendicular to, more specifically 90 ° +/– 10 °, preferably 90 ° +/– 5 °, with respect to a surface tangent from which point the hanger extends outward from it. This angle is indicated in Figure 20 as "x" for purposes of convenient reference. This ensures that a consistent load and proper hook weight distribution and proper device placement are maintained without

basket in the sanitary appliance, especially a toilet.

Optionally, prior to the introduction of the preform and hanger into a die in the following process step, the die compression stage, one or more of the interior surfaces of the die 130 can be sprayed with a mold release material or another lubricant such as mineral oil or a paraffin oil. The die 130 is preferably a pair of opposing dies 130 which, when compressed by suitable compression means, such as a piston 132 and anvil 134, form an intermediate die cavity of a suitable dimension, into which the preform 152. Therefore, a preform 152 is introduced into the die compression stage having a hanger inserted between the opposing dies 130, and the opposing dies 130 are joined together to form both the pressed solid block composition and adhering it to the plate 30, as well as to densify the composition of the pressed solid block by at least 1.5%, preferably at least 2% more than the density of the extruded piece from which the block 50 is formed solid pressed. Advantageously, the die pressure is at least 500 to 1,500 psi (3,447 to 10,342 kPa).

The toilet device 10 without a basket formed is removed from the die and is ready for use, or alternatively it can be packaged in a suitable package in order to form a marketable article.

Figure 25 shows a further embodiment of a toilet dosing device 80, which includes the suspension support 10 as described above, a part of which is enclosed in, or covered by, a pressed solid block composition 50.

Figure 26 shows a further embodiment of a toilet dosing device 80, which includes the suspension support 10 as described above, a part of which is enclosed in, or covered by, a pressed solid block composition 50 .

Figure 27 shows a further embodiment of a toilet dosing device 80, which includes the suspension support 10 as described above, a part of which is enclosed in, or covered by, a pressed solid block composition 50.

Figure 28 shows a further embodiment of a toilet dosing device 80, which includes the suspension support 10 as described above, a part of which is enclosed in, or covered by, a pressed solid block composition 50 .

Examples:

Pressed solid blocks were produced from what is described in the following tables. Several compositions were also produced, and are indicated by the letter "E" preceding one or more digits; these do not include titanium dioxide. The pressed solid blocks were produced in the manner described above and fixed to a hook, in general according to Figure 3.

The compositions listed in Table 1 show toilet block compositions that do not contain bleach.

Table 1

E1

E2 E3 E4 E5 E6 E7 E8

sodium dodecyl benzenesulfonate (85%)

2. 3 2. 3 2. 3 2. 3 2. 3 2. 3 2. 3 2. 3

C14 / C16 olefin sulphonate, sodium salt (80%)

26.4 26.4 26.4 26.4 26.4 26.4 26.4 26.4

anhydrous sodium sulfate

41.9 42 41,946 41,940 41,947 41,949 41,997 41,993

anhydrous silica

2 2 2 2 2 2 2 2

fragrance

4 4 4 4 4 4 4 4

coloring agent (pigment)

- 0.04 0.0035 0.01 0.0025 0.0008 0.0025 0.0065

mineral oil

2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

titanium dioxide

0.2 0.06 0.15 0.15 0.15 0.15 0.10 0.10

Table 1

E9

E10 E11 E12 E13 E14 E15 E16

sodium dodecyl benzenesulfonate (85%)

2. 3 2. 3 2. 3 24.03 2. 3 21.7 2. 3 2. 3

C14 / C16 olefin sulphonate, sodium salt (80%)

26.4 26.4 26.4 27.59 26.4 24.91 26.4 26.4

anhydrous sodium sulfate

41,998 41,998 41,998 39.06 37.31 35.21 42,297 42,297

E9

E10 E11 E12 E13 E14 E15 E16

anhydrous silica

2 2 2 2.09 2 1.89 2 2

(continuation)

fragrance

4 4 4 4 4 4 4 4

coloring agent (pigment)

0.0018 0.0012 0.0018 0.018 0.09 0.09 0.0022 0.003

mineral oil

2.5 2.5 2.5 2.2 2.2 2.2 2.2 2.2

titanium dioxide

0.10 0.10 0.10 1.0 5 10.0 0.10 0.10

Table 1A

C1

C2 C3 C4

sodium dodecyl benzenesulfonate (85%)

2. 3 2. 3 2. 3 2. 3

C14 / C16 olefin sulphonate, sodium salt (80%)

26.4 26.4 26.4 26.4

anhydrous sodium sulfate

42,099 42,098 42,097 42,097

anhydrous silica

2 2 2 2

fragrance

4 4 4 4

coloring agent (pigment)

0.0005 0.0018 0.0025 0.0023

mineral oil

2.5 2.5 2.5 2.5

titanium dioxide

- - - -

The identity of the constituents used to form the above pressed solid blocks is identified more specifically in Table 2 below. The individual constituents were used "as supplied" from their respective suppliers and may constitute less than 100% by weight, or 100% by weight of the referred compound, as indicated in Table 1. If it is less than one 100%, the amount of active ingredients present in the material "as supplied" is indicated in Tables 1 and 2.

Table 2

sodium dodecyl benzenesulfonate (85%)

sodium dodecyl benzenesulfonate (85% by weight of active ingredients), which is supplied as UFARYL DL85, or other source

C14 / C16 olefin sulphonate, sodium salt (80%)

C14 / C16 olefin sulphonate, sodium salt (80% by weight of active ingredients), which is supplied as LSS 480 / H, or other source

anhydrous sodium sulfate

anhydrous sodium sulfate

anhydrous silica

supplied as MICROSIL ED, or other source

fragrance

patented composition of their respective supplier

coloring agent (pigment)

Patented pigment composition from their respective supplier

mineral oil

technical grade mineral oil; technical grade paraffin oil

Some of the preceding example compositions were subjected to service life tests to evaluate the pressed solid block compositions that are used as an ITB basketless toilet device. According to the tests, ITB basketless toilet devices were produced according to the preceding analysis in the specification, in which a mass of the pressed solid block compositions was extruded to give a preform, a groove was provided in the preform, and a hanger was provided in general according to that illustrated in Figure 3, such that the hanger plate was completely inserted into the groove of the preform. The preform was then subjected to a single compression operation on a die suitable for pressing and forming the pressed solid block composition, to give a block that also has a configuration in general as shown in Figure 14A. The initial mass of the pressed solid block composition varied slightly from sample to sample, but the initial mass is indicated in the following table.

According to the test sample, dispensing devices without an ITB toilet basket were supplied to a toilet, a "Remo" model toilet bowl (from Shires Co., Ireland) or a "Jacob Delafon toilet bowl" ”(From Delafon, France). The test samples were subjected to an "accelerated" test protocol, in which the toilet water was discharged 40 times for each day of the test. The placement of the ITB device varied, but once placed before the test it did not move until the test was completed. The test was performed over a number of successive days, and all tests were performed at approximately room temperature (19-22 ° C). Periodic form, water was discharged from each of the toilets and was automatically discharged by a machine-controlled device that operated the toilets to discharge the water 40 times a day, at intervals of approximately 30 minutes between flushes. The appearance of the pressed solid blocks was observed during the duration of the test, and before the tests and the initial discharge wash of each of the dispensing devices without ITB toilet basket was weighed, and then placed suspended from from the edge of a toilet bowl. At the conclusion of 315 discharge wash cycles, the dispensing devices without basket for ITB toilet sample test were removed and allowed to dry for at least 60 minutes, and then weighed. In this way, the loss of the mass of the generally dry pressed solid blocks was evaluated. In the following test, the sample devices were tested, including a pressed solid block composition according to several of the example compositions according to Table 1, as well as the example compositions according to Table 1A. The test results are indicated in the following table 3.

Table 3

sample number / composition

initial mass of pressed solid block (grams) final pressed solid block mass (grams) after 315 discharge washes % mass loss of pressed solid block after 315 discharge washes

1 / E8

44.30 9.50 78.55

1 / E9

44.30 16.73 62.23

2 / E9

44.30 8.77 80.20

3 / E9

44.30 7.44 83.20

4 / E9

44.30 8.22 81.44

5 / E9

44.30 7.38 83.34

1 / E7

44.30 15.49 65.03

2 / E8

44.30 7.22 83.70

3 / E8

44.30 4.24 90.42

6 / E9

44.30 11.66 73.67

1 / E10

44.30 17.97 59.43

2 / E7

44.30 3.45 92.21

1 / C1

44.30 3.94 91.10

1 / C2

44.30 5.08 88.53

1 / C3

44.30 4.79 89.18

During the test and after the conclusion of the test, no rupture of the pressed solid block compositions was observed, showing an effective adhesion of the compositions to the plate despite multiple discharge wash cycles in which the water flowing delivered from the edge of the toilet incide

5 directly on the plate and the respective compositions. The compositions also delivered an effective amount of the surfactants present in the blocks, as evidenced by the formation of bubbles or foam in the water line of the toilet bowl following a discharge wash cycle.

The disparities in the rate of dissolution of the sample devices tested in similar numbers of flushing washes can often be attributed to the placement of the sample with respect to about 10 specific positions on the edge of the toilet bowl, due to that in some positions larger volumes of water were released with each discharge wash and tended to erode or dissolve the pressed composition block more quickly than in other positions. This is not considered to be a detriment, but rather allows the consumer to selectively place the dispensing devices without an ITB toilet basket, to provide a degree of control over the life of the block, and over the training degree

15 of foam that is desired following individual flushes of the toilet bowl.

Before a visual inspection, the surface appearance of the blocks, as they are formed and before the previous test, was substantially smooth, with a generally uniform color. This was observed for the blocks as disclosed in Table 1, as well as for the block compositions according to Table 1A, which excluded titanium dioxide. However, after the test and after the blocks had been allowed to

After drying, the sample blocks according to Table 1A had a pronounced and unattractive surface spotted or mottled appearance, with significant amounts of crystals (or agglomerates) of sodium sulfate very clearly visible by the naked eye. In contrast, the blocks tested and dried in a similar manner according to Table 1 were of a generally smooth and uniform surface appearance, with little spotting or surface spotting visible to the naked eye.

Claims (7)

1. A process for the manufacture of a dosing device for a toilet without a basket useful for the supply of at least one solid treatment composition, preferably a cleaning composition and / or a sanitation composition to a sanitary appliance, wherein said toilet dosing device without The basket comprises a suspension support (10) having a hook end (20) adapted to be suspended from a part of a sanitary appliance, preferably the edge of a toilet bowl, and a pressed solid block (50) comprising dioxide of titanium and at least one chemical agent adapted to be suspended inside the sanitary apparatus, said manufacturing process comprises the steps of: 10 (a) mixing the titanium dioxide with at least one additional chemical composition in an extruder to form a dough;

(b)

 extrude the dough to give a preform shape;

(C)

 divide, at least partially, the extruded piece to give the branches of a ‘V’ during extrusion of the

dough to give the form of preform; 15 (d) insert a part of the hanger to form the preform; Y (e) compress the preform form into a die to provide the final form of the pressed solid block composition of the dosing device for a basketless toilet. 2. A method according to claim 1, wherein the device comprises a rod (16) hanging from the hanger and a plate (30) hanging from the rod. A method according to claim 1, wherein the device comprises a rod (16) that hangs from the hanger that includes a separation section (80) and a plate that hangs from the rod. 4. A method according to claim 2 or 3, wherein the pressed solid block composition covers or encloses a part of the hanger. 5. A method according to claim 2 or 3, wherein the pressed solid block composition 25 coats or encloses the plate.

6.

 A method according to any one of claims 1 to 5, wherein the device further includes an air treatment dispenser.

7.

 A process according to any one of claims 1 to 6, wherein the pressed solid block composition further comprises one or more chemical constituents such that when the block is

30 dipped, rinsed or washed with water, said chemical constituents are diluted or dissolved in said water, and forms a treatment composition that provides a cleaning and / or sanitizing benefit and / or sanitizer to the toilet or other sanitary apparatus that is being treated with the treatment composition. 8. A process according to any of claims 1 to 7, wherein the pressed solid block comprises at least one surfactant.